diff --git a/.travis.yml b/.travis.yml
index 7deea6f..4371cfc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,4 @@ install:
   - npm install
 
 script:
-  - npm run lint
-  - npm run build
-  - npm run minify
   - npm test
diff --git a/README.md b/README.md
index 055c9a9..a903e9a 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ A generic resource loader, made with web games in mind.
 
 ```js
 // ctor
+import { Loader, middleware } from 'resource-loader';
+
 const loader = new Loader();
 
 loader
@@ -14,11 +16,11 @@ loader
 
     // Chainable `pre` to add a middleware that runs for each resource, *before* loading that resource.
     // This is useful to implement custom caching modules (using filesystem, indexeddb, memory, etc).
-    .pre(cachingMiddleware)
+    .pre(middleware.caching)
 
     // Chainable `use` to add a middleware that runs for each resource, *after* loading that resource.
     // This is useful to implement custom parsing modules (like spritesheet parsers, spine parser, etc).
-    .use(parsingMiddleware)
+    .use(middleware.parsing)
 
     // The `load` method loads the queue of resources, and calls the passed in callback called once all
     // resources have loaded.
@@ -40,7 +42,7 @@ loader.onComplete.add(() => {}); // called once when the queued resources all lo
 
 ## Building
 
-You will need to have [node][node] and [gulp][gulp] setup on your machine.
+You will need to have [node][node] setup on your machine.
 
 Then you can install dependencies and build:
 
@@ -51,7 +53,6 @@ npm i && npm run build
 That will output the built distributables to `./dist`.
 
 [node]:       http://nodejs.org/
-[gulp]:       http://gulpjs.com/
 
 ## Supported Browsers
 
diff --git a/jsdoc.conf.json b/jsdoc.conf.json
index ec7762e..4df5710 100644
--- a/jsdoc.conf.json
+++ b/jsdoc.conf.json
@@ -11,7 +11,7 @@
     },
     "plugins": [
         "plugins/markdown",
-        "./scripts/jsdoc-plugin-es6"
+        "@pixi/jsdoc-template/plugins/es6-fix"
     ],
     "templates": {
         "cleverLinks"   : false,
diff --git a/package-lock.json b/package-lock.json
index 8c3f59b..7bf80f9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,69 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
+      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/highlight": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0.tgz",
+      "integrity": "sha512-UFMC4ZeFC48Tpvj7C8UgLvtkaUuovQX+5xNWrsIoMG8o2z+XFKjKaN9iVmS84dPwVN00W4wPmqvYoZF3EGAsfw==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        },
+        "js-tokens": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+          "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
+      }
+    },
+    "@babel/parser": {
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.4.4.tgz",
+      "integrity": "sha512-5pCS4mOsL+ANsFZGdvNLybx4wtqAZJ0MJjMHxvzI3bvIsz6sQvzW8XX92EYIkiPtIvcfG3Aj+Ir5VNyjnZhP7w==",
+      "dev": true
+    },
     "@englercj/code-style": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/@englercj/code-style/-/code-style-1.0.7.tgz",
@@ -21,94 +84,90 @@
       }
     },
     "@sinonjs/commons": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.0.2.tgz",
-      "integrity": "sha512-WR3dlgqJP4QNrLC4iXN/5/2WaLQQ0VijOOkmflqFGVJ6wLEpbSjo7c0ZeGIdtY8Crk7xBBp87sM6+Mkerz7alw==",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.4.0.tgz",
+      "integrity": "sha512-9jHK3YF/8HtJ9wCAbG+j8cD0i0+ATS9A7gXFqS36TblLPNy6rEEc+SB0imo91eCboGaBYGV/MT1/br/J+EE7Tw==",
       "dev": true,
       "requires": {
         "type-detect": "4.0.8"
       }
     },
     "@sinonjs/formatio": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz",
-      "integrity": "sha512-ls6CAMA6/5gG+O/IdsBcblvnd8qcO/l1TYoNeAzp3wcISOxlPXQEus0mLcdwazEkWjaBdaJ3TaxmNgCLWwvWzg==",
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-3.2.1.tgz",
+      "integrity": "sha512-tsHvOB24rvyvV2+zKMmPkZ7dXX6LSLKZ7aOtXY6Edklp0uRcgGpOsQTTGTcWViFyx4uhWc6GV8QdnALbIbIdeQ==",
       "dev": true,
       "requires": {
-        "samsam": "1.3.0"
+        "@sinonjs/commons": "^1",
+        "@sinonjs/samsam": "^3.1.0"
       }
     },
     "@sinonjs/samsam": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-2.0.0.tgz",
-      "integrity": "sha512-D7VxhADdZbDJ0HjUTMnSQ5xIGb4H2yWpg8k9Sf1T08zfFiQYlaxM8LZydpR4FQ2E6LZJX8IlabNZ5io4vdChwg==",
-      "dev": true
-    },
-    "JSONStream": {
-      "version": "1.3.5",
-      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.5.tgz",
-      "integrity": "sha512-E+iruNOY8VV9s4JEbe1aNEm6MiszPRr/UfcHMz0TQh1BXSxHK+ASV1R6W4HpjBhSeS+54PIsAMCBmwD06LLsqQ==",
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-3.3.1.tgz",
+      "integrity": "sha512-wRSfmyd81swH0hA1bxJZJ57xr22kC07a1N4zuIL47yTS04bDk6AoCkczcqHEjcRPmJ+FruGJ9WBQiJwMtIElFw==",
       "dev": true,
       "requires": {
-        "jsonparse": "^1.2.0",
-        "through": ">=2.2.7 <3"
+        "@sinonjs/commons": "^1.0.2",
+        "array-from": "^2.1.1",
+        "lodash": "^4.17.11"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.11",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
+          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+          "dev": true
+        }
       }
     },
-    "accepts": {
-      "version": "1.3.5",
-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
-      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
-      "dev": true,
-      "requires": {
-        "mime-types": "~2.1.18",
-        "negotiator": "0.6.1"
-      }
+    "@sinonjs/text-encoding": {
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz",
+      "integrity": "sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==",
+      "dev": true
     },
-    "acorn": {
-      "version": "5.7.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
-      "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ==",
+    "@types/estree": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
+      "integrity": "sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==",
       "dev": true
     },
-    "acorn-dynamic-import": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz",
-      "integrity": "sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw==",
+    "@types/node": {
+      "version": "11.13.10",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-11.13.10.tgz",
+      "integrity": "sha512-leUNzbFTMX94TWaIKz8N15Chu55F9QSH+INKayQr5xpkasBQBRF3qQXfo3/dOnMU/dEIit+Y/SU8HyOjq++GwA==",
       "dev": true
     },
-    "acorn-jsx": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-4.1.1.tgz",
-      "integrity": "sha512-JY+iV6r+cO21KtntVvFkD+iqjtdpRUpGqKWgfkCdZq1R+kbreEl8EcdcJR4SmiIgsIQT33s6QzheQ9a275Q8xw==",
+    "@types/resolve": {
+      "version": "0.0.8",
+      "resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-0.0.8.tgz",
+      "integrity": "sha512-auApPaJf3NPfe18hSoJkp8EbZzer2ISk7o8mCC3M9he/a04+gbMF97NkpD2S8riMGvm4BMRI59/SZQSaLTKpsQ==",
       "dev": true,
       "requires": {
-        "acorn": "^5.0.3"
+        "@types/node": "*"
       }
     },
-    "acorn-node": {
-      "version": "1.6.2",
-      "resolved": "https://registry.npmjs.org/acorn-node/-/acorn-node-1.6.2.tgz",
-      "integrity": "sha512-rIhNEZuNI8ibQcL7ANm/mGyPukIaZsRNX9psFNQURyJW0nu6k8wjSDld20z6v2mDBWqX13pIEnk9gGZJHIlEXg==",
+    "accepts": {
+      "version": "1.3.7",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+      "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
       "dev": true,
       "requires": {
-        "acorn": "^6.0.2",
-        "acorn-dynamic-import": "^4.0.0",
-        "acorn-walk": "^6.1.0",
-        "xtend": "^4.0.1"
-      },
-      "dependencies": {
-        "acorn": {
-          "version": "6.0.4",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.4.tgz",
-          "integrity": "sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg==",
-          "dev": true
-        }
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
       }
     },
-    "acorn-walk": {
+    "acorn": {
       "version": "6.1.1",
-      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-6.1.1.tgz",
-      "integrity": "sha512-OtUw6JUTgxA2QoqqmrmQ7F2NYqiBPi/L2jqHyFtllhOUvXYQXf0Z1CYUinIfyT4bTCGmrA7gX9FvHA81uzCoVw==",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
+      "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
+      "dev": true
+    },
+    "acorn-jsx": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.1.tgz",
+      "integrity": "sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==",
       "dev": true
     },
     "after": {
@@ -118,27 +177,27 @@
       "dev": true
     },
     "ajv": {
-      "version": "6.5.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.2.tgz",
-      "integrity": "sha512-hOs7GfvI6tUI1LfZddH82ky6mOMyTuY0mk7kE2pWpmhhUSkumzaTO5vbVwij39MdwPQWCV4Zv57Eo06NtL/GVA==",
+      "version": "6.10.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
+      "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^2.0.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
-        "uri-js": "^4.2.1"
+        "uri-js": "^4.2.2"
       }
     },
-    "ajv-keywords": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.2.0.tgz",
-      "integrity": "sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=",
+    "ansi-colors": {
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.3.tgz",
+      "integrity": "sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==",
       "dev": true
     },
     "ansi-escapes": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
-      "integrity": "sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw==",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
+      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
       "dev": true
     },
     "ansi-regex": {
@@ -158,6 +217,7 @@
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
       "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
       "dev": true,
+      "optional": true,
       "requires": {
         "micromatch": "^2.1.5",
         "normalize-path": "^2.0.0"
@@ -177,6 +237,7 @@
       "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
       "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
       "dev": true,
+      "optional": true,
       "requires": {
         "arr-flatten": "^1.0.1"
       }
@@ -199,6 +260,12 @@
       "integrity": "sha1-fajPLiZijtcygDWB/SH2fKzS7uw=",
       "dev": true
     },
+    "array-from": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/array-from/-/array-from-2.1.1.tgz",
+      "integrity": "sha1-z+nYwmYoudxa7MYqn12PHzUsEZU=",
+      "dev": true
+    },
     "array-map": {
       "version": "0.0.0",
       "resolved": "https://registry.npmjs.org/array-map/-/array-map-0.0.0.tgz",
@@ -211,12 +278,6 @@
       "integrity": "sha1-FziZ0//Rx9k4PkR5Ul2+J4yrXys=",
       "dev": true
     },
-    "array-slice": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-0.2.3.tgz",
-      "integrity": "sha1-3Tz7gO15c6dRF82sabC5nshhhvU=",
-      "dev": true
-    },
     "array-union": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
@@ -236,7 +297,8 @@
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
       "integrity": "sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "arraybuffer.slice": {
       "version": "0.0.7",
@@ -244,49 +306,6 @@
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       "dev": true
     },
-    "arrify": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
-      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
-      "dev": true
-    },
-    "asn1.js": {
-      "version": "4.10.1",
-      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.10.1.tgz",
-      "integrity": "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==",
-      "dev": true,
-      "requires": {
-        "bn.js": "^4.0.0",
-        "inherits": "^2.0.1",
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-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/assert/-/assert-1.4.1.tgz",
-      "integrity": "sha1-mZEtWRg2tab1s0XA8H7vwI/GXZE=",
-      "dev": true,
-      "requires": {
-        "util": "0.10.3"
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-      "dependencies": {
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-          "version": "2.0.1",
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-          "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
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+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.2.2.tgz",
+      "integrity": "sha512-WyEoxgyTD3w5XRpAQNYUB9ycVH/PQrToaTXdYXRdOXvEy1l19br+VJsc0vcO8PTGg5ro/l/GY7F/JMEBmI0BxA==",
+      "dev": true,
+      "requires": {
+        "cliui": "^4.0.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^2.0.1",
+        "os-locale": "^3.1.0",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^3.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
+      }
+    },
+    "yargs-parser": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.0.0.tgz",
+      "integrity": "sha512-w2LXjoL8oRdRQN+hOyppuXs+V/fVAYtpcrRxZuF7Kt/Oc+Jr2uAcVntaUTNT6w5ihoWfFDpNY8CPx1QskxZ/pw==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    },
+    "yargs-unparser": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.5.0.tgz",
+      "integrity": "sha512-HK25qidFTCVuj/D1VfNiEndpLIeJN78aqgR23nL3y4N0U/91cOAzqfHlF8n2BvoNDcZmJKin3ddNSvOxSr8flw==",
+      "dev": true,
+      "requires": {
+        "flat": "^4.1.0",
+        "lodash": "^4.17.11",
+        "yargs": "^12.0.5"
+      },
+      "dependencies": {
+        "get-caller-file": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.3.tgz",
+          "integrity": "sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==",
+          "dev": true
+        },
+        "lodash": {
+          "version": "4.17.11",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
+          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+          "dev": true
+        },
+        "require-main-filename": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
+          "integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=",
+          "dev": true
+        },
+        "yargs": {
+          "version": "12.0.5",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
+          "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
+          "dev": true,
+          "requires": {
+            "cliui": "^4.0.0",
+            "decamelize": "^1.2.0",
+            "find-up": "^3.0.0",
+            "get-caller-file": "^1.0.1",
+            "os-locale": "^3.0.0",
+            "require-directory": "^2.1.1",
+            "require-main-filename": "^1.0.1",
+            "set-blocking": "^2.0.0",
+            "string-width": "^2.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^3.2.1 || ^4.0.0",
+            "yargs-parser": "^11.1.1"
+          }
+        },
+        "yargs-parser": {
+          "version": "11.1.1",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
+          "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
+          }
+        }
+      }
+    },
     "yeast": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
diff --git a/package.json b/package.json
index fdf685f..691f464 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,9 @@
 {
   "name": "resource-loader",
   "version": "2.2.4",
-  "main": "./lib/index.js",
+  "main": "./dist/resource-loader.cjs.js",
+  "module": "./dist/resource-loader.esm.js",
+  "bundle": "./dist/resource-loader.js",
   "types": "./typings/resource-loader.d.ts",
   "description": "A generic asset loader, made with web games in mind.",
   "author": "Chad Engler <chad@pantherdev.com>",
@@ -25,27 +27,25 @@
     "README.md"
   ],
   "scripts": {
-    "clean": "rm -rf ./dist ./lib && npm run setup",
+    "clean": "rimraf ./dist/* ./lib/* && run-s setup",
     "dts": "jsdoc -t node_modules/tsd-jsdoc/dist -r src -P package.json -d typings/",
     "setup": "mkdirp dist lib",
-    "full-build": "npm run clean && npm run build && npm run minify",
-    "prebuild": "npm run setup && npm run lib",
-    "build": "browserify -d -s Loader -e ./lib/index.js -o ./dist/resource-loader.js",
-    "lib": "babel src --out-dir lib -s",
-    "minify": "uglifyjs --output ./dist/resource-loader.min.js -- ./dist/resource-loader.js",
+    "prebuild": "run-s setup clean lint",
+    "build": "rollup -c",
     "lint": "eslint src/ test/",
-    "start": "npm run full-build",
-    "pretest": "npm run full-build",
+    "watch": "rollup -cw",
+    "start": "run-s build",
+    "pretest": "run-s build",
     "test": "npm run test-dev -- --single-run",
     "test-dev": "karma start test/karma.conf.js",
     "docs": "jsdoc -c jsdoc.conf.json -R README.md",
-    "prepublish": "npm run full-build",
-    "predeploy": "rm -rf ./docs && npm run docs",
+    "prepublish": "run-s build",
+    "predeploy": "rimraf ./docs && run-s docs",
     "deploy": "gh-pages -d docs",
     "postpublish": "npm run deploy"
   },
   "dependencies": {
-    "mini-signals": "^1.1.1",
+    "mini-signals": "^1.2.0",
     "parse-uri": "^1.0.0"
   },
   "devDependencies": {
@@ -53,24 +53,27 @@
     "@pixi/jsdoc-template": "^2.4.2",
     "babel-cli": "^6.26.0",
     "babel-preset-es2015": "^6.24.1",
-    "browserify": "^16.2.3",
-    "chai": "^4.1.2",
-    "eslint": "^5.3.0",
-    "gh-pages": "^1.2.0",
+    "chai": "^4.2.0",
+    "eslint": "^5.16.0",
+    "gh-pages": "^2.0.1",
     "ink-docstrap": "^1.3.2",
-    "jsdoc": "^3.5.5",
-    "karma": "^3.0.0",
+    "jsdoc": "^3.6.1",
+    "karma": "^4.1.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-firefox-launcher": "^1.1.0",
     "karma-mocha": "^1.3.0",
     "karma-mocha-reporter": "^2.2.5",
     "karma-sinon-chai": "^2.0.2",
     "mkdirp": "^0.5.1",
-    "mocha": "^5.2.0",
-    "sinon": "^6.1.5",
-    "sinon-chai": "^3.2.0",
-    "tsd-jsdoc": "^2.0.4",
-    "uglify-js": "^3.4.7",
-    "watchify": "^3.11.0"
+    "mocha": "^6.1.4",
+    "npm-run-all": "^4.1.5",
+    "rimraf": "^2.6.3",
+    "rollup": "^1.11.3",
+    "rollup-plugin-commonjs": "^9.3.4",
+    "rollup-plugin-node-resolve": "^4.2.3",
+    "rollup-plugin-terser": "^4.0.4",
+    "sinon": "^7.3.2",
+    "sinon-chai": "^3.3.0",
+    "tsd-jsdoc": "^2.1.3"
   }
 }
diff --git a/rollup.config.js b/rollup.config.js
new file mode 100644
index 0000000..b887968
--- /dev/null
+++ b/rollup.config.js
@@ -0,0 +1,81 @@
+import resolve from 'rollup-plugin-node-resolve';
+import commonjs from 'rollup-plugin-commonjs';
+import { terser } from 'rollup-plugin-terser';
+import pkg from './package.json';
+
+const plugins = [
+    resolve(),
+    commonjs()
+];
+const sourcemap = true;
+const freeze = false;
+const input = 'src/index.js';
+const bundleInput = 'src/bundle.js';
+const external = Object.keys(pkg.dependencies);
+const compiled = (new Date()).toUTCString().replace(/GMT/g, "UTC");
+
+const banner = `/*!
+ * ${pkg.name} - v${pkg.version}
+ * https://github.com/pixijs/pixi-sound
+ * Compiled ${compiled}
+ *
+ * ${pkg.name} is licensed under the MIT license.
+ * http://www.opensource.org/licenses/mit-license
+ */`;
+
+export default [
+    {
+        input,
+        plugins,
+        external,
+        output: [
+            {
+                banner,
+                file: 'dist/resource-loader.cjs.js',
+                format: 'cjs',
+                freeze,
+                sourcemap,
+            },
+            {
+                banner,
+                file: 'dist/resource-loader.esm.js',
+                format: 'esm',
+                freeze,
+                sourcemap,
+            }
+        ]
+    },
+    {
+        input: bundleInput,
+        plugins,
+        output: {
+            banner,
+            name: 'Loader',
+            file: 'dist/resource-loader.js',
+            format: 'iife',
+            freeze,
+            sourcemap,
+        }
+    },
+    {
+        input: bundleInput,
+        plugins: [].concat(plugins, terser({
+            output: {
+                comments(node, comment) {
+                    return comment.line === 1;
+                },
+            },
+            compress: {
+                drop_console: true,
+            },
+        })),
+        output: {
+            banner,
+            name: 'Loader',
+            file: 'dist/resource-loader.min.js',
+            format: 'iife',
+            freeze,
+            sourcemap,
+        }
+    }
+];
diff --git a/scripts/jsdoc-plugin-es6.js b/scripts/jsdoc-plugin-es6.js
deleted file mode 100644
index 8f6b766..0000000
--- a/scripts/jsdoc-plugin-es6.js
+++ /dev/null
@@ -1,41 +0,0 @@
-'use strict';
-
-// JSDoc has issues getting the name of `export default class NAME {}`
-// this gross regex hacks around that issue until it is fixed.
-// See: https://github.com/jsdoc3/jsdoc/issues/1137#issuecomment-174829004
-
-const rgxGross = /(\/\*{2}[\W\w]+?\*\/)\s*export\s+default\s+class\s+([^\s]*)/g;
-const grossReplace = 'export default $2;\n\n$1\nclass $2';
-
-// JSDoc has issues with expressing member properties within a class
-// this is another terrible hack to address this issue.
-// See: https://github.com/jsdoc3/jsdoc/issues/1301
-
-const rgxMember = /(\@member \{[^\}]+\})(\n[^\/]+\/[\b\s]+)(this\.([^\s]+))/g;
-const rgxClassName = /export (default )?class (.+?)\s/;
-const rgxNamespace = /\@memberof ([\.a-zA-Z0-9]+)\s/;
-
-exports.handlers = {
-    /**
-     * Called before parsing a file, giving us a change to replace the source.
-     *
-     * @param {*} e - The `beforeParse` event data.
-     * @param {string} e.filename - The name of the file being parsed.
-     * @param {string} e.source - The source of the file being parsed.
-     */
-    beforeParse(e)
-    {
-        const namespace = e.source.match(rgxNamespace);
-        const className = e.source.match(rgxClassName);
-
-        // Fix members not showing up attached to class
-        if (namespace && className)
-        {
-            // console.log(`${namespace[1]}.${className[2]}`);
-            // Replaces "@member {Type}"" with "@member {Type} PIXI.ClassName#prop"
-            e.source = e.source.replace(rgxMember, `$1 ${namespace[1]}.${className[2]}#$4$2$3`);
-        }
-
-        e.source = e.source.replace(rgxGross, grossReplace);
-    },
-};
diff --git a/src/Loader.js b/src/Loader.js
index 694d2b9..7257ca4 100644
--- a/src/Loader.js
+++ b/src/Loader.js
@@ -12,7 +12,7 @@ const rgxExtractUrlHash = /(#[\w-]+)?$/;
  *
  * @class
  */
-export class Loader {
+class Loader {
     /**
      * @param {string} [baseUrl=''] - The base url for all resources loaded by this loader.
      * @param {number} [concurrency=10] - The number of resources to load concurrently.
@@ -29,6 +29,7 @@ export class Loader {
          * The progress percent of the loader going through the queue.
          *
          * @member {number}
+         * @default 0
          */
         this.progress = 0;
 
@@ -36,6 +37,7 @@ export class Loader {
          * Loading state of the loader, true if it is currently loading resources.
          *
          * @member {boolean}
+         * @default false
          */
         this.loading = false;
 
@@ -60,6 +62,7 @@ export class Loader {
          * loader.add('iamge.png?v=1').load();
          *
          * @member {string}
+         * @default ''
          */
         this.defaultQueryString = '';
 
@@ -709,3 +712,6 @@ Loader.use = function LoaderUseStatic(fn) {
 
     return Loader;
 };
+
+export { Loader };
+
diff --git a/src/Resource.js b/src/Resource.js
index c2f3d6d..9077276 100644
--- a/src/Resource.js
+++ b/src/Resource.js
@@ -20,7 +20,7 @@ function _noop() { /* empty */ }
  *
  * @class
  */
-export class Resource {
+class Resource {
     /**
      * Sets the load type to be used for a specific extension.
      *
@@ -1175,7 +1175,4 @@ function reqType(xhr) {
     return xhr.toString().replace('object ', '');
 }
 
-// Backwards compat
-if (typeof module !== 'undefined') {
-    module.exports.default = Resource; // eslint-disable-line no-undef
-}
+export { Resource };
diff --git a/src/async.js b/src/async.js
index ddcd76a..122bc50 100644
--- a/src/async.js
+++ b/src/async.js
@@ -17,6 +17,7 @@ function _noop() { /* empty */ }
  * Iterates an array in series.
  *
  * @memberof async
+ * @function eachSeries
  * @param {Array.<*>} array - Array to iterate.
  * @param {function} iterator - Function to call for each element.
  * @param {function} callback - Function to call when done, or on error.
@@ -71,6 +72,7 @@ function onlyOnce(fn) {
  * Async queue implementation,
  *
  * @memberof async
+ * @function queue
  * @param {function} worker - The worker function to call for each task.
  * @param {number} concurrency - How many workers to run in parrallel.
  * @return {*} The async queue object.
diff --git a/src/bundle.js b/src/bundle.js
new file mode 100644
index 0000000..e5ec1bf
--- /dev/null
+++ b/src/bundle.js
@@ -0,0 +1,22 @@
+import * as async from './async';
+import * as middleware from './middleware';
+import { Loader } from './Loader';
+import { Resource } from './Resource';
+import { encodeBinary } from './encodeBinary';
+
+Object.defineProperties(Loader, {
+    Resource: { get() {
+        return Resource;
+    } },
+    async: { get() {
+        return async;
+    } },
+    encodeBinary: { get() {
+        return encodeBinary;
+    } },
+    middleware: { get() {
+        return middleware;
+    } },
+});
+
+export default Loader;
diff --git a/src/b64.js b/src/encodeBinary.js
similarity index 94%
rename from src/b64.js
rename to src/encodeBinary.js
index be7dc89..83a5993 100644
--- a/src/b64.js
+++ b/src/encodeBinary.js
@@ -3,6 +3,7 @@ const _keyStr = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+
 /**
  * Encodes binary into base64.
  *
+ * @function encodeBinary
  * @param {string} input The input data to encode.
  * @returns {string} The encoded base64 string
  */
@@ -67,8 +68,3 @@ export function encodeBinary(input) {
 
     return output;
 }
-
-// Backwards compat
-if (typeof module !== 'undefined') {
-    module.exports.default = encodeBinary; // eslint-disable-line no-undef
-}
diff --git a/src/index.js b/src/index.js
index f051ef5..4bb72b9 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,53 +1,8 @@
-// import Loader from './Loader';
-// import Resource from './Resource';
-// import * as async from './async';
-// import * as b64 from './b64';
-
-/* eslint-disable no-undef */
-
-const Loader = require('./Loader').Loader;
-const Resource = require('./Resource').Resource;
-const async = require('./async');
-const b64 = require('./b64');
-
-/**
- *
- * @static
- * @memberof Loader
- * @member {Class<Resource>}
- */
-Loader.Resource = Resource;
-
-/**
- *
- * @static
- * @memberof Loader
- * @member {Class<async>}
- */
-Loader.async = async;
-
-/**
- *
- * @static
- * @memberof Loader
- * @member {Class<encodeBinary>}
- */
-Loader.encodeBinary = b64;
-
-/**
- *
- * @deprecated
- * @see Loader.encodeBinary
- *
- * @static
- * @memberof Loader
- * @member {Class<encodeBinary>}
- */
-Loader.base64 = b64;
-
-// export manually, and also as default
-module.exports = Loader;
-
-// default & named export
-module.exports.Loader = Loader;
-module.exports.default = Loader;
+import * as async from './async';
+import * as middleware from './middleware';
+
+export { Loader } from './Loader';
+export { Resource } from './Resource';
+export { async };
+export { encodeBinary } from './encodeBinary';
+export { middleware };
diff --git a/src/middleware/caching.js b/src/middleware/caching.js
new file mode 100644
index 0000000..bbb4d35
--- /dev/null
+++ b/src/middleware/caching.js
@@ -0,0 +1,28 @@
+// a simple in-memory cache for resources
+const cache = {};
+
+/**
+ * A simple in-memory cache for resource.
+ *
+ * @memberof middleware
+ * @function caching
+ * @example
+ * import { Loader, middleware } from 'resource-loader';
+ * const loader = new Loader();
+ * loader.use(middleware.caching);
+ * @param {Resource} resource - Current Resource
+ * @param {function} next - Callback when complete
+ */
+export function caching(resource, next) {
+    // if cached, then set data and complete the resource
+    if (cache[resource.url]) {
+        resource.data = cache[resource.url];
+        resource.complete(); // marks resource load complete and stops processing before middlewares
+    }
+    // if not cached, wait for complete and store it in the cache.
+    else {
+        resource.onComplete.once(() => (cache[this.url] = this.data));
+    }
+
+    next();
+}
diff --git a/src/middleware/index.js b/src/middleware/index.js
new file mode 100644
index 0000000..1872fac
--- /dev/null
+++ b/src/middleware/index.js
@@ -0,0 +1,5 @@
+/**
+ * @namespace middleware
+ */
+export * from './caching';
+export * from './parsing';
diff --git a/src/middleware/parsing.js b/src/middleware/parsing.js
new file mode 100644
index 0000000..67dfa03
--- /dev/null
+++ b/src/middleware/parsing.js
@@ -0,0 +1,74 @@
+import { Resource } from '../Resource';
+import { encodeBinary } from '../encodeBinary';
+
+const Url = window.URL || window.webkitURL;
+
+/**
+ * A middleware for transforming XHR loaded Blobs into more useful objects
+ *
+ * @memberof middleware
+ * @function parsing
+ * @example
+ * import { Loader, middleware } from 'resource-loader';
+ * const loader = new Loader();
+ * loader.use(middleware.parsing);
+ * @param {Resource} resource - Current Resource
+ * @param {function} next - Callback when complete
+ */
+export function parsing(resource, next) {
+    if (!resource.data) {
+        next();
+
+        return;
+    }
+
+    // if this was an XHR load of a blob
+    if (resource.xhr && resource.xhrType === Resource.XHR_RESPONSE_TYPE.BLOB) {
+        // if there is no blob support we probably got a binary string back
+        if (!window.Blob || typeof resource.data === 'string') {
+            const type = resource.xhr.getResponseHeader('content-type');
+
+            // this is an image, convert the binary string into a data url
+            if (type && type.indexOf('image') === 0) {
+                resource.data = new Image();
+                resource.data.src = `data:${type};base64,${encodeBinary(resource.xhr.responseText)}`;
+
+                resource.type = Resource.TYPE.IMAGE;
+
+                // wait until the image loads and then callback
+                resource.data.onload = () => {
+                    resource.data.onload = null;
+
+                    next();
+                };
+
+                // next will be called on load
+                return;
+            }
+        }
+        // if content type says this is an image, then we should transform the blob into an Image object
+        else if (resource.data.type.indexOf('image') === 0) {
+            const src = Url.createObjectURL(resource.data);
+
+            resource.blob = resource.data;
+            resource.data = new Image();
+            resource.data.src = src;
+
+            resource.type = Resource.TYPE.IMAGE;
+
+            // cleanup the no longer used blob after the image loads
+            // TODO: Is this correct? Will the image be invalid after revoking?
+            resource.data.onload = () => {
+                Url.revokeObjectURL(src);
+                resource.data.onload = null;
+
+                next();
+            };
+
+            // next will be called on load.
+            return;
+        }
+    }
+
+    next();
+}
diff --git a/src/middlewares/caching/memory.js b/src/middlewares/caching/memory.js
deleted file mode 100644
index 655a41e..0000000
--- a/src/middlewares/caching/memory.js
+++ /dev/null
@@ -1,18 +0,0 @@
-// a simple in-memory cache for resources
-const cache = {};
-
-export function memoryMiddlewareFactory() {
-    return function memoryMiddleware(resource, next) {
-        // if cached, then set data and complete the resource
-        if (cache[resource.url]) {
-            resource.data = cache[resource.url];
-            resource.complete(); // marks resource load complete and stops processing before middlewares
-        }
-        // if not cached, wait for complete and store it in the cache.
-        else {
-            resource.onComplete.once(() => (cache[this.url] = this.data));
-        }
-
-        next();
-    };
-}
diff --git a/src/middlewares/parsing/blob.js b/src/middlewares/parsing/blob.js
deleted file mode 100644
index e928775..0000000
--- a/src/middlewares/parsing/blob.js
+++ /dev/null
@@ -1,65 +0,0 @@
-import { Resource } from '../../Resource';
-import { encodeBinary } from '../../b64';
-
-const Url = window.URL || window.webkitURL;
-
-// a middleware for transforming XHR loaded Blobs into more useful objects
-export function blobMiddlewareFactory() {
-    return function blobMiddleware(resource, next) {
-        if (!resource.data) {
-            next();
-
-            return;
-        }
-
-        // if this was an XHR load of a blob
-        if (resource.xhr && resource.xhrType === Resource.XHR_RESPONSE_TYPE.BLOB) {
-            // if there is no blob support we probably got a binary string back
-            if (!window.Blob || typeof resource.data === 'string') {
-                const type = resource.xhr.getResponseHeader('content-type');
-
-                // this is an image, convert the binary string into a data url
-                if (type && type.indexOf('image') === 0) {
-                    resource.data = new Image();
-                    resource.data.src = `data:${type};base64,${encodeBinary(resource.xhr.responseText)}`;
-
-                    resource.type = Resource.TYPE.IMAGE;
-
-                    // wait until the image loads and then callback
-                    resource.data.onload = () => {
-                        resource.data.onload = null;
-
-                        next();
-                    };
-
-                    // next will be called on load
-                    return;
-                }
-            }
-            // if content type says this is an image, then we should transform the blob into an Image object
-            else if (resource.data.type.indexOf('image') === 0) {
-                const src = Url.createObjectURL(resource.data);
-
-                resource.blob = resource.data;
-                resource.data = new Image();
-                resource.data.src = src;
-
-                resource.type = Resource.TYPE.IMAGE;
-
-                // cleanup the no longer used blob after the image loads
-                // TODO: Is this correct? Will the image be invalid after revoking?
-                resource.data.onload = () => {
-                    Url.revokeObjectURL(src);
-                    resource.data.onload = null;
-
-                    next();
-                };
-
-                // next will be called on load.
-                return;
-            }
-        }
-
-        next();
-    };
-}
diff --git a/test/unit/Loader.test.js b/test/unit/Loader.test.js
index 91951b7..84e7af2 100644
--- a/test/unit/Loader.test.js
+++ b/test/unit/Loader.test.js
@@ -40,10 +40,10 @@ describe('Loader', () => {
     });
 
     it('should have exported correctly', () => {
-        expect(Loader).to.have.property('default', Loader);
         expect(Loader).to.have.property('Resource');
         expect(Loader).to.have.property('async');
-        expect(Loader).to.have.property('base64');
+        expect(Loader).to.have.property('encodeBinary');
+        expect(Loader).to.have.property('middleware');
     });
 
     it('should have correct properties', () => {
diff --git a/typings/mini-signals.d.ts b/typings/mini-signals.d.ts
index 2deb13d..34e68e2 100644
--- a/typings/mini-signals.d.ts
+++ b/typings/mini-signals.d.ts
@@ -22,5 +22,5 @@ declare module "mini-signals"
         dispatch: CbType;
     }
 
-    export = MiniSignal;
+    export default MiniSignal;
 }
diff --git a/typings/resource-loader.d.ts b/typings/resource-loader.d.ts
index c668c2d..ea189bb 100644
--- a/typings/resource-loader.d.ts
+++ b/typings/resource-loader.d.ts
@@ -1,53 +1,320 @@
-import Signal from 'mini-signals';
+/// <reference path="./mini-signals.d.ts" />
 
-declare namespace async {
-    function eachSeries(array: any[], iterator: (...params: any[]) => any, callback: (...params: any[]) => any, deferNext?: boolean): void;
-    function queue(worker: (...params: any[]) => any, concurrency: number): any;
-}
-
-declare function encodeBinary(input: string): string;
+import Signal from 'mini-signals';
 
+/**
+ * @param {string} [baseUrl=''] - The base url for all resources loaded by this loader.
+ * @param {number} [concurrency=10] - The number of resources to load concurrently.
+ */
 declare class Loader {
     constructor(baseUrl?: string, concurrency?: number);
-    static Resource: typeof Resource;
-    static async: typeof async;
-    static encodeBinary: typeof encodeBinary;
-    static base64: typeof encodeBinary;
+    /**
+     * The base url for all resources loaded by this loader.
+     *
+     * @member {string}
+     */
     baseUrl: string;
+    /**
+     * The progress percent of the loader going through the queue.
+     *
+     * @member {number}
+     * @default 0
+     */
     progress: number;
+    /**
+     * Loading state of the loader, true if it is currently loading resources.
+     *
+     * @member {boolean}
+     * @default false
+     */
     loading: boolean;
+    /**
+     * A querystring to append to every URL added to the loader.
+     *
+     * This should be a valid query string *without* the question-mark (`?`). The loader will
+     * also *not* escape values for you. Make sure to escape your parameters with
+     * [`encodeURIComponent`](https://mdn.io/encodeURIComponent) before assigning this property.
+     *
+     * @example
+     * const loader = new Loader();
+     *
+     * loader.defaultQueryString = 'user=me&password=secret';
+     *
+     * // This will request 'image.png?user=me&password=secret'
+     * loader.add('image.png').load();
+     *
+     * loader.reset();
+     *
+     * // This will request 'image.png?v=1&user=me&password=secret'
+     * loader.add('iamge.png?v=1').load();
+     *
+     * @member {string}
+     * @default ''
+     */
     defaultQueryString: string;
+    /**
+     * All the resources for this loader keyed by name.
+     *
+     * @member {object<string, Resource>}
+     */
     resources: {
         [key: string]: Resource;
     };
+    /**
+     * Dispatched once per loaded or errored resource.
+     *
+     * The callback looks like {@link Loader.OnProgressSignal}.
+     *
+     * @member {Signal<Loader.OnProgressSignal>}
+     */
     onProgress: Signal<Loader.OnProgressSignal>;
+    /**
+     * Dispatched once per errored resource.
+     *
+     * The callback looks like {@link Loader.OnErrorSignal}.
+     *
+     * @member {Signal<Loader.OnErrorSignal>}
+     */
     onError: Signal<Loader.OnErrorSignal>;
+    /**
+     * Dispatched once per loaded resource.
+     *
+     * The callback looks like {@link Loader.OnLoadSignal}.
+     *
+     * @member {Signal<Loader.OnLoadSignal>}
+     */
     onLoad: Signal<Loader.OnLoadSignal>;
+    /**
+     * Dispatched when the loader begins to process the queue.
+     *
+     * The callback looks like {@link Loader.OnStartSignal}.
+     *
+     * @member {Signal<Loader.OnStartSignal>}
+     */
     onStart: Signal<Loader.OnStartSignal>;
+    /**
+     * Dispatched when the queued resources all load.
+     *
+     * The callback looks like {@link Loader.OnCompleteSignal}.
+     *
+     * @member {Signal<Loader.OnCompleteSignal>}
+     */
     onComplete: Signal<Loader.OnCompleteSignal>;
+    /**
+     * Adds a resource (or multiple resources) to the loader queue.
+     *
+     * This function can take a wide variety of different parameters. The only thing that is always
+     * required the url to load. All the following will work:
+     *
+     * ```js
+     * loader
+     *     // normal param syntax
+     *     .add('key', 'http://...', function () {})
+     *     .add('http://...', function () {})
+     *     .add('http://...')
+     *
+     *     // object syntax
+     *     .add({
+     *         name: 'key2',
+     *         url: 'http://...'
+     *     }, function () {})
+     *     .add({
+     *         url: 'http://...'
+     *     }, function () {})
+     *     .add({
+     *         name: 'key3',
+     *         url: 'http://...'
+     *         onComplete: function () {}
+     *     })
+     *     .add({
+     *         url: 'https://...',
+     *         onComplete: function () {},
+     *         crossOrigin: true
+     *     })
+     *
+     *     // you can also pass an array of objects or urls or both
+     *     .add([
+     *         { name: 'key4', url: 'http://...', onComplete: function () {} },
+     *         { url: 'http://...', onComplete: function () {} },
+     *         'http://...'
+     *     ])
+     *
+     *     // and you can use both params and options
+     *     .add('key', 'http://...', { crossOrigin: true }, function () {})
+     *     .add('http://...', { crossOrigin: true }, function () {});
+     * ```
+     *
+     * @function
+     * @variation 1
+     * @param {string} name - The name of the resource to load.
+     * @param {string} url - The url for this resource, relative to the baseUrl of this loader.
+     * @param {Resource.OnCompleteSignal} [callback] - Function to call when this specific resource completes loading.
+     * @return {this} Returns itself.
+     */
     add(name: string, url: string, callback?: Resource.OnCompleteSignal): this;
+    /** @function
+     * @variation 2
+     * @param {string} name - The name of the resource to load.
+     * @param {string} url - The url for this resource, relative to the baseUrl of this loader.
+     * @param {IAddOptions} [options] - The options for the load.
+     * @param {Resource.OnCompleteSignal} [callback] - Function to call when this specific resource completes loading.
+     * @return {this} Returns itself.
+     */
     add(name: string, url: string, options?: IAddOptions, callback?: Resource.OnCompleteSignal): this;
+    /** @function
+     * @variation 3
+     * @param {string} url - The url for this resource, relative to the baseUrl of this loader.
+     * @param {Resource.OnCompleteSignal} [callback] - Function to call when this specific resource completes loading.
+     * @return {this} Returns itself.
+     */
     add(url: string, callback?: Resource.OnCompleteSignal): this;
+    /** @function
+     * @variation 4
+     * @param {string} url - The url for this resource, relative to the baseUrl of this loader.
+     * @param {IAddOptions} [options] - The options for the load.
+     * @param {Resource.OnCompleteSignal} [callback] - Function to call when this specific resource completes loading.
+     * @return {this} Returns itself.
+     */
     add(url: string, options?: IAddOptions, callback?: Resource.OnCompleteSignal): this;
+    /** @function
+     * @variation 5
+     * @param {IAddOptions} options - The options for the load. This object must contain a `url` property.
+     * @param {Resource.OnCompleteSignal} [callback] - Function to call when this specific resource completes loading.
+     * @return {this} Returns itself.
+     */
     add(options: IAddOptions, callback?: Resource.OnCompleteSignal): this;
+    /** @function
+     * @variation 6
+     * @param {Array<IAddOptions|string>} resources - An array of resources to load, where each is
+     *      either an object with the options or a string url. If you pass an object, it must contain a `url` property.
+     * @param {Resource.OnCompleteSignal} [callback] - Function to call when this specific resource completes loading.
+     * @return {this} Returns itself.
+     */
     add(resources: (IAddOptions | string)[], callback?: Resource.OnCompleteSignal): this;
+    /**
+     * Sets up a middleware function that will run *before* the
+     * resource is loaded.
+     *
+     * @param {function} fn - The middleware function to register.
+     * @return {this} Returns itself.
+     */
     pre(fn: (...params: any[]) => any): this;
+    /**
+     * Sets up a middleware function that will run *after* the
+     * resource is loaded.
+     *
+     * @param {function} fn - The middleware function to register.
+     * @return {this} Returns itself.
+     */
     use(fn: (...params: any[]) => any): this;
+    /**
+     * Resets the queue of the loader to prepare for a new load.
+     *
+     * @return {this} Returns itself.
+     */
     reset(): this;
+    /**
+     * Starts loading the queued resources.
+     *
+     * @param {function} [cb] - Optional callback that will be bound to the `complete` event.
+     * @return {this} Returns itself.
+     */
     load(cb?: (...params: any[]) => any): this;
+    /**
+     * The number of resources to load concurrently.
+     *
+     * @member {number}
+     * @default 10
+     */
     concurrency: number;
+    /**
+     * Sets up a middleware function that will run *before* the
+     * resource is loaded.
+     *
+     * @static
+     * @param {function} fn - The middleware function to register.
+     * @return {Loader} Returns itself.
+     */
     static pre(fn: (...params: any[]) => any): Loader;
+    /**
+     * Sets up a middleware function that will run *after* the
+     * resource is loaded.
+     *
+     * @static
+     * @param {function} fn - The middleware function to register.
+     * @return {Loader} Returns itself.
+     */
     static use(fn: (...params: any[]) => any): Loader;
 }
 
 declare module Loader {
+    /**
+     * When the progress changes the loader and resource are disaptched.
+     *
+     * @memberof Loader
+     * @callback OnProgressSignal
+     * @param {Loader} loader - The loader the progress is advancing on.
+     * @param {Resource} resource - The resource that has completed or failed to cause the progress to advance.
+     */
     type OnProgressSignal = (loader: Loader, resource: Resource) => void;
+    /**
+     * When an error occurrs the loader and resource are disaptched.
+     *
+     * @memberof Loader
+     * @callback OnErrorSignal
+     * @param {Loader} loader - The loader the error happened in.
+     * @param {Resource} resource - The resource that caused the error.
+     */
     type OnErrorSignal = (loader: Loader, resource: Resource) => void;
+    /**
+     * When a load completes the loader and resource are disaptched.
+     *
+     * @memberof Loader
+     * @callback OnLoadSignal
+     * @param {Loader} loader - The loader that laoded the resource.
+     * @param {Resource} resource - The resource that has completed loading.
+     */
     type OnLoadSignal = (loader: Loader, resource: Resource) => void;
+    /**
+     * When the loader starts loading resources it dispatches this callback.
+     *
+     * @memberof Loader
+     * @callback OnStartSignal
+     * @param {Loader} loader - The loader that has started loading resources.
+     */
     type OnStartSignal = (loader: Loader) => void;
+    /**
+     * When the loader completes loading resources it dispatches this callback.
+     *
+     * @memberof Loader
+     * @callback OnCompleteSignal
+     * @param {Loader} loader - The loader that has finished loading resources.
+     */
     type OnCompleteSignal = (loader: Loader) => void;
 }
 
+/**
+ * Options for a call to `.add()`.
+ *
+ * @see Loader#add
+ *
+ * @typedef {object} IAddOptions
+ * @property {string} [name] - The name of the resource to load, if not passed the url is used.
+ * @property {string} [key] - Alias for `name`.
+ * @property {string} [url] - The url for this resource, relative to the baseUrl of this loader.
+ * @property {string|boolean} [crossOrigin] - Is this request cross-origin? Default is to
+ *      determine automatically.
+ * @property {number} [timeout=0] - A timeout in milliseconds for the load. If the load takes
+ *      longer than this time it is cancelled and the load is considered a failure. If this value is
+ *      set to `0` then there is no explicit timeout.
+ * @property {Resource.LOAD_TYPE} [loadType=Resource.LOAD_TYPE.XHR] - How should this resource
+ *      be loaded?
+ * @property {Resource.XHR_RESPONSE_TYPE} [xhrType=Resource.XHR_RESPONSE_TYPE.DEFAULT] - How
+ *      should the data being loaded be interpreted when using XHR?
+ * @property {Resource.OnCompleteSignal} [onComplete] - Callback to add an an onComplete signal istener.
+ * @property {Resource.OnCompleteSignal} [callback] - Alias for `onComplete`.
+ * @property {Resource.IMetadata} [metadata] - Extra configuration for middleware and the Resource object.
+ */
 declare type IAddOptions = {
     name?: string;
     key?: string;
@@ -61,6 +328,22 @@ declare type IAddOptions = {
     metadata?: Resource.IMetadata;
 };
 
+/**
+ * @param {string} name - The name of the resource to load.
+ * @param {string|string[]} url - The url for this resource, for audio/video loads you can pass
+ *      an array of sources.
+ * @param {object} [options] - The options for the load.
+ * @param {string|boolean} [options.crossOrigin] - Is this request cross-origin? Default is to
+ *      determine automatically.
+ * @param {number} [options.timeout=0] - A timeout in milliseconds for the load. If the load takes
+ *      longer than this time it is cancelled and the load is considered a failure. If this value is
+ *      set to `0` then there is no explicit timeout.
+ * @param {Resource.LOAD_TYPE} [options.loadType=Resource.LOAD_TYPE.XHR] - How should this resource
+ *      be loaded?
+ * @param {Resource.XHR_RESPONSE_TYPE} [options.xhrType=Resource.XHR_RESPONSE_TYPE.DEFAULT] - How
+ *      should the data being loaded be interpreted when using XHR?
+ * @param {Resource.IMetadata} [options.metadata] - Extra configuration for middleware and the Resource object.
+ */
 declare class Resource {
     constructor(name: string, url: string | string[], options?: {
         crossOrigin?: string | boolean;
@@ -69,49 +352,261 @@ declare class Resource {
         xhrType?: Resource.XHR_RESPONSE_TYPE;
         metadata?: Resource.IMetadata;
     });
+    /**
+     * Sets the load type to be used for a specific extension.
+     *
+     * @static
+     * @param {string} extname - The extension to set the type for, e.g. "png" or "fnt"
+     * @param {Resource.LOAD_TYPE} loadType - The load type to set it to.
+     */
     static setExtensionLoadType(extname: string, loadType: Resource.LOAD_TYPE): void;
+    /**
+     * Sets the load type to be used for a specific extension.
+     *
+     * @static
+     * @param {string} extname - The extension to set the type for, e.g. "png" or "fnt"
+     * @param {Resource.XHR_RESPONSE_TYPE} xhrType - The xhr type to set it to.
+     */
     static setExtensionXhrType(extname: string, xhrType: Resource.XHR_RESPONSE_TYPE): void;
+    /**
+     * The name of this resource.
+     *
+     * @readonly
+     * @member {string}
+     */
     readonly name: string;
+    /**
+     * The url used to load this resource.
+     *
+     * @readonly
+     * @member {string}
+     */
     readonly url: string;
+    /**
+     * The extension used to load this resource.
+     *
+     * @readonly
+     * @member {string}
+     */
     readonly extension: string;
+    /**
+     * The data that was loaded by the resource.
+     *
+     * @member {any}
+     */
     data: any;
+    /**
+     * Is this request cross-origin? If unset, determined automatically.
+     *
+     * @member {string}
+     */
     crossOrigin: string;
+    /**
+     * A timeout in milliseconds for the load. If the load takes longer than this time
+     * it is cancelled and the load is considered a failure. If this value is set to `0`
+     * then there is no explicit timeout.
+     *
+     * @member {number}
+     */
     timeout: number;
+    /**
+     * The method of loading to use for this resource.
+     *
+     * @member {Resource.LOAD_TYPE}
+     */
     loadType: Resource.LOAD_TYPE;
+    /**
+     * The type used to load the resource via XHR. If unset, determined automatically.
+     *
+     * @member {string}
+     */
     xhrType: string;
+    /**
+     * Extra info for middleware, and controlling specifics about how the resource loads.
+     *
+     * Note that if you pass in a `loadElement`, the Resource class takes ownership of it.
+     * Meaning it will modify it as it sees fit.
+     *
+     * @member {Resource.IMetadata}
+     */
     metadata: Resource.IMetadata;
+    /**
+     * The error that occurred while loading (if any).
+     *
+     * @readonly
+     * @member {Error}
+     */
     readonly error: Error;
+    /**
+     * The XHR object that was used to load this resource. This is only set
+     * when `loadType` is `Resource.LOAD_TYPE.XHR`.
+     *
+     * @readonly
+     * @member {XMLHttpRequest}
+     */
     readonly xhr: XMLHttpRequest;
+    /**
+     * The child resources this resource owns.
+     *
+     * @readonly
+     * @member {Resource[]}
+     */
     readonly children: Resource[];
+    /**
+     * The resource type.
+     *
+     * @readonly
+     * @member {Resource.TYPE}
+     */
     readonly type: Resource.TYPE;
+    /**
+     * The progress chunk owned by this resource.
+     *
+     * @readonly
+     * @member {number}
+     */
     readonly progressChunk: number;
+    /**
+     * Dispatched when the resource beings to load.
+     *
+     * The callback looks like {@link Resource.OnStartSignal}.
+     *
+     * @member {Signal<Resource.OnStartSignal>}
+     */
     onStart: Signal<Resource.OnStartSignal>;
+    /**
+     * Dispatched each time progress of this resource load updates.
+     * Not all resources types and loader systems can support this event
+     * so sometimes it may not be available. If the resource
+     * is being loaded on a modern browser, using XHR, and the remote server
+     * properly sets Content-Length headers, then this will be available.
+     *
+     * The callback looks like {@link Resource.OnProgressSignal}.
+     *
+     * @member {Signal<Resource.OnProgressSignal>}
+     */
     onProgress: Signal<Resource.OnProgressSignal>;
+    /**
+     * Dispatched once this resource has loaded, if there was an error it will
+     * be in the `error` property.
+     *
+     * The callback looks like {@link Resource.OnCompleteSignal}.
+     *
+     * @member {Signal<Resource.OnCompleteSignal>}
+     */
     onComplete: Signal<Resource.OnCompleteSignal>;
+    /**
+     * Dispatched after this resource has had all the *after* middleware run on it.
+     *
+     * The callback looks like {@link Resource.OnCompleteSignal}.
+     *
+     * @member {Signal<Resource.OnCompleteSignal>}
+     */
     onAfterMiddleware: Signal<Resource.OnCompleteSignal>;
+    /**
+     * Stores whether or not this url is a data url.
+     *
+     * @readonly
+     * @member {boolean}
+     */
     readonly isDataUrl: boolean;
+    /**
+     * Describes if this resource has finished loading. Is true when the resource has completely
+     * loaded.
+     *
+     * @readonly
+     * @member {boolean}
+     */
     readonly isComplete: boolean;
+    /**
+     * Describes if this resource is currently loading. Is true when the resource starts loading,
+     * and is false again when complete.
+     *
+     * @readonly
+     * @member {boolean}
+     */
     readonly isLoading: boolean;
+    /**
+     * Marks the resource as complete.
+     *
+     */
     complete(): void;
+    /**
+     * Aborts the loading of this resource, with an optional message.
+     *
+     * @param {string} message - The message to use for the error
+     */
     abort(message: string): void;
+    /**
+     * Kicks off loading of this resource. This method is asynchronous.
+     *
+     * @param {Resource.OnCompleteSignal} [cb] - Optional callback to call once the resource is loaded.
+     */
     load(cb?: Resource.OnCompleteSignal): void;
 }
 
 declare module Resource {
+    /**
+     * When the resource starts to load.
+     *
+     * @memberof Resource
+     * @callback OnStartSignal
+     * @param {Resource} resource - The resource that the event happened on.
+     */
     type OnStartSignal = (resource: Resource) => void;
+    /**
+     * When the resource reports loading progress.
+     *
+     * @memberof Resource
+     * @callback OnProgressSignal
+     * @param {Resource} resource - The resource that the event happened on.
+     * @param {number} percentage - The progress of the load in the range [0, 1].
+     */
     type OnProgressSignal = (resource: Resource, percentage: number) => void;
+    /**
+     * When the resource finishes loading.
+     *
+     * @memberof Resource
+     * @callback OnCompleteSignal
+     * @param {Resource} resource - The resource that the event happened on.
+     */
     type OnCompleteSignal = (resource: Resource) => void;
+    /**
+     * @memberof Resource
+     * @typedef {object} IMetadata
+     * @property {HTMLImageElement|HTMLAudioElement|HTMLVideoElement} [loadElement=null] - The
+     *      element to use for loading, instead of creating one.
+     * @property {boolean} [skipSource=false] - Skips adding source(s) to the load element. This
+     *      is useful if you want to pass in a `loadElement` that you already added load sources to.
+     * @property {string|string[]} [mimeType] - The mime type to use for the source element
+     *      of a video/audio elment. If the urls are an array, you can pass this as an array as well
+     *      where each index is the mime type to use for the corresponding url index.
+     */
     type IMetadata = {
         loadElement?: HTMLImageElement | HTMLAudioElement | HTMLVideoElement;
         skipSource?: boolean;
         mimeType?: string | string[];
     };
+    /**
+     * The types of resources a resource could represent.
+     *
+     * @static
+     * @readonly
+     * @enum {number}
+     */
     enum STATUS_FLAGS {
         NONE,
         DATA_URL,
         COMPLETE,
         LOADING
     }
+    /**
+     * The types of resources a resource could represent.
+     *
+     * @static
+     * @readonly
+     * @enum {number}
+     */
     enum TYPE {
         UNKNOWN,
         JSON,
@@ -121,12 +616,26 @@ declare module Resource {
         VIDEO,
         TEXT
     }
+    /**
+     * The types of loading a resource can use.
+     *
+     * @static
+     * @readonly
+     * @enum {number}
+     */
     enum LOAD_TYPE {
         XHR,
         IMAGE,
         AUDIO,
         VIDEO
     }
+    /**
+     * The XHR ready states, used internally.
+     *
+     * @static
+     * @readonly
+     * @enum {string}
+     */
     enum XHR_RESPONSE_TYPE {
         DEFAULT,
         BUFFER,
@@ -137,3 +646,73 @@ declare module Resource {
     }
 }
 
+/**
+ * Smaller version of the async library constructs.
+ *
+ * @namespace async
+ */
+declare namespace async {
+    /**
+     * Iterates an array in series.
+     *
+     * @memberof async
+     * @function eachSeries
+     * @param {Array.<*>} array - Array to iterate.
+     * @param {function} iterator - Function to call for each element.
+     * @param {function} callback - Function to call when done, or on error.
+     * @param {boolean} [deferNext=false] - Break synchronous each loop by calling next with a setTimeout of 1.
+     */
+    function eachSeries(array: any[], iterator: (...params: any[]) => any, callback: (...params: any[]) => any, deferNext?: boolean): void;
+    /**
+     * Async queue implementation,
+     *
+     * @memberof async
+     * @function queue
+     * @param {function} worker - The worker function to call for each task.
+     * @param {number} concurrency - How many workers to run in parrallel.
+     * @return {*} The async queue object.
+     */
+    function queue(worker: (...params: any[]) => any, concurrency: number): any;
+}
+
+/**
+ * Encodes binary into base64.
+ *
+ * @function encodeBinary
+ * @param {string} input The input data to encode.
+ * @returns {string} The encoded base64 string
+ */
+declare function encodeBinary(input: string): string;
+
+/**
+ * @namespace middleware
+ */
+declare namespace middleware {
+    /**
+     * A simple in-memory cache for resource.
+     *
+     * @memberof middleware
+     * @function caching
+     * @example
+     * import { Loader, middleware } from 'resource-loader';
+     * const loader = new Loader();
+     * loader.use(middleware.caching);
+     * @param {Resource} resource - Current Resource
+     * @param {function} next - Callback when complete
+     */
+    function caching(resource: Resource, next: (...params: any[]) => any): void;
+    /**
+     * A middleware for transforming XHR loaded Blobs into more useful objects
+     *
+     * @memberof middleware
+     * @function parsing
+     * @example
+     * import { Loader, middleware } from 'resource-loader';
+     * const loader = new Loader();
+     * loader.use(middleware.parsing);
+     * @param {Resource} resource - Current Resource
+     * @param {function} next - Callback when complete
+     */
+    function parsing(resource: Resource, next: (...params: any[]) => any): void;
+}
+