diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..852cb38
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,43 @@
+name: Build
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - '*'
+  pull_request:
+    types: [opened, reopened, synchronize]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 13.x, 14.x]
+    steps:
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - uses: actions/checkout@v1
+      
+      - run: npm install
+      - run: npm run test
+
+      - name: Upload coverage to Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          
+  test-browser:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+
+      - uses: actions/checkout@v1
+
+      - run: npm install
+      - run: npm run test:browser
+
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 62cc53f..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-language: node_js
-node_js:
-  - "8"
-  - "10"
-addons:
-  apt:
-    sources:
-    - ubuntu-toolchain-r-test
-    packages:
-    - g++-4.8
-branches:
-  # We need to whitelist the branches which we want to have "push" automation.
-  # Pull request automation is not constrained to this set of branches.
-  only:
-  - master
-env:
-  matrix:
-    - CXX=g++-4.8 TEST_SUITE=test
-matrix:
-  fast_finish: true
-  include:
-    - os: linux
-      node_js: "8"
-      env: CXX=g++-4.8 TEST_SUITE=coveralls
-    - os: linux
-      node_js: "8"
-      env: CXX=g++-4.8 TEST_SUITE=lint
-script: npm run $TEST_SUITE
diff --git a/README.md b/README.md
index 18455db..a7ebcbc 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # ethereumjs-wallet
 
 [![NPM Package](https://img.shields.io/npm/v/ethereumjs-wallet.svg?style=flat-square)](https://www.npmjs.org/package/ethereumjs-wallet)
-[![Build Status](https://travis-ci.org/ethereumjs/ethereumjs-wallet.svg?branch=master)](https://travis-ci.org/ethereumjs/ethereumjs-wallet)
+[![Actions Status](https://github.com/ethereumjs/ethereumjs-wallet/workflows/Build/badge.svg)](https://github.com/ethereumjs/ethereumjs-wallet/actions)
 [![Coverage Status](https://img.shields.io/coveralls/ethereumjs/ethereumjs-wallet.svg?style=flat-square)](https://coveralls.io/r/ethereumjs/ethereumjs-wallet)
 [![Gitter](https://img.shields.io/gitter/room/ethereum/ethereumjs-lib.svg?style=flat-square)](https://gitter.im/ethereum/ethereumjs-lib) or #ethereumjs on freenode
 
diff --git a/karma.conf.js b/karma.conf.js
new file mode 100644
index 0000000..d11df0c
--- /dev/null
+++ b/karma.conf.js
@@ -0,0 +1,27 @@
+module.exports = function(config) {
+  config.set({
+    frameworks: ['mocha', 'karma-typescript'],
+    files: ['src/**/*.ts', 'test/**/*.ts'],
+    preprocessors: {
+      '**/*.ts': ['karma-typescript'],
+    },
+    plugins: ['karma-mocha', 'karma-typescript', 'karma-chrome-launcher', 'karma-firefox-launcher'],
+    karmaTypescriptConfig: {
+      bundlerOptions: {
+        entrypoints: /\.spec\.ts$/,
+        acornOptions: {
+          ecmaVersion: 8,
+        },
+        transforms: [require('karma-typescript-es6-transform')()],
+      },
+    },
+    colors: true,
+    reporters: ['progress', 'karma-typescript'],
+    browsers: ['FirefoxHeadless', 'ChromeHeadless'],
+    singleRun: true,
+    concurrency: Infinity,
+    // Extend timeouts for long tests
+    browserDisconnectTimeout: 1000000,
+    browserNoActivityTimeout: 1000000,
+  })
+}
diff --git a/package.json b/package.json
index 4d36ad5..55287be 100644
--- a/package.json
+++ b/package.json
@@ -12,13 +12,12 @@
     "prepublishOnly": "npm run format && npm run tslint && npm run test",
     "docs:build": "typedoc --out docs --mode file --readme none --theme markdown --mdEngine github --excludeNotExported src",
     "coverage": "ethereumjs-config-coverage",
-    "coveralls": "ethereumjs-config-coveralls",
     "format": "ethereumjs-config-format",
     "format:fix": "ethereumjs-config-format-fix",
     "lint": "ethereumjs-config-lint",
     "lint:fix": "ethereumjs-config-lint-fix",
-    "pretest": "npm run build",
-    "test": "nyc mocha ./test/**/*.ts",
+    "test": "npm run build && nyc --reporter=lcov mocha ./test/**/*.ts",
+    "test:browser": "karma start karma.conf.js",
     "tsc": "ethereumjs-config-tsc",
     "tslint": "ethereumjs-config-tslint",
     "tslint:fix": "ethereumjs-config-tslint-fix"
@@ -62,19 +61,24 @@
     "@types/lodash.zip": "^4.2.6",
     "@types/mocha": "^5.2.7",
     "@types/node": "^12.0.10",
-    "coveralls": "^3.0.0",
     "ethers": "^4.0.33",
     "husky": "^2.1.0",
+    "karma": "^5.0.2",
+    "karma-chrome-launcher": "^2.0.0",
+    "karma-firefox-launcher": "^1.0.0",
+    "karma-mocha": "^2.0.0",
+    "karma-typescript": "^4.1.1",
+    "karma-typescript-es6-transform": "^5.0.2",
     "lodash.zip": "^4.2.0",
-    "mocha": "^5.2.0",
-    "nyc": "^14.1.1",
+    "mocha": "^7.1.2",
+    "nyc": "^15.0.1",
     "prettier": "^1.15.3",
     "source-map-support": "^0.5.12",
-    "ts-node": "^8.3.0",
+    "ts-node": "^8.9.1",
     "tslint": "^5.12.0",
-    "typescript": "^3.2.2",
-    "typestrict": "^1.0.2",
     "typedoc": "^0.14.2",
-    "typedoc-plugin-markdown": "^1.2.0"
+    "typedoc-plugin-markdown": "^1.2.0",
+    "typescript": "^3.8.3",
+    "typestrict": "^1.0.2"
   }
 }
diff --git a/test/hdkey.ts b/test/hdkey.spec.ts
similarity index 100%
rename from test/hdkey.ts
rename to test/hdkey.spec.ts
diff --git a/test/index.ts b/test/index.spec.ts
similarity index 98%
rename from test/index.ts
rename to test/index.spec.ts
index 3c8c724..abd1b85 100644
--- a/test/index.ts
+++ b/test/index.spec.ts
@@ -24,6 +24,10 @@ const fixturePublicKeyBuffer = Buffer.from(fixturePublicKey, 'hex')
 const fixtureWallet = Wallet.fromPrivateKey(fixturePrivateKeyBuffer)
 const fixtureEthersWallet = new ethersWallet(fixtureWallet.getPrivateKeyString())
 
+const isRunningInKarma = () => {
+  return typeof (global as any).window !== 'undefined' && (global as any).window.__karma__
+}
+
 describe('.getPrivateKey()', function() {
   it('should work', function() {
     assert.strictEqual(fixtureWallet.getPrivateKey().toString('hex'), fixturePrivateKey)
@@ -212,7 +216,7 @@ describe('.toV3()', function() {
   const makePermutations = (...objs: Array<object>): Array<object> => {
     const permus = []
     const keys = Array.from(
-      objs.reduce((acc: Set<string>, curr: object) => {
+      objs.reduce((acc: any, curr: object) => {
         Object.keys(curr).forEach(key => {
           acc.add(key)
         })
@@ -246,7 +250,13 @@ describe('.toV3()', function() {
     return obj
   }
 
-  const permutations = makePermutations(strKdfOptions, buffKdfOptions)
+  let permutations = makePermutations(strKdfOptions, buffKdfOptions)
+
+  if (isRunningInKarma()) {
+    // These tests take a long time in the browser due to
+    // the amount of permutations so we will shorten them.
+    permutations = permutations.slice(1)
+  }
 
   it('should work with PBKDF2', async function() {
     this.timeout(0) // never
@@ -669,6 +679,7 @@ describe('.fromV3()', function() {
   it('should fail with invalid password', function() {
     const w =
       '{"crypto":{"cipher":"aes-128-ctr","cipherparams":{"iv":"6087dab2f9fdbbfaddc31a909735c1e6"},"ciphertext":"5318b4d5bcd28de64ee5559e671353e16f075ecae9f99c7a79a38af5f869aa46","kdf":"pbkdf2","kdfparams":{"c":262144,"dklen":32,"prf":"hmac-sha256","salt":"ae3cd4e7013836a3df6bd7241b12db061dbe2c6785853cce422d148a624ce0bd"},"mac":"517ead924a9d0dc3124507e3393d175ce3ff7c1e96529c6c555ce9e51205e9b2"},"id":"3198bc9c-6672-5ab3-d995-4942343ae5b6","version":3}'
+    this.timeout(0) // never
     assert.throws(function() {
       Wallet.fromV3(w, 'wrongtestpassword')
     }, /^Error: Key derivation failed - possibly wrong passphrase$/)
@@ -676,12 +687,14 @@ describe('.fromV3()', function() {
   it('should work with (broken) mixed-case input files', function() {
     const w =
       '{"Crypto":{"cipher":"aes-128-ctr","cipherparams":{"iv":"6087dab2f9fdbbfaddc31a909735c1e6"},"ciphertext":"5318b4d5bcd28de64ee5559e671353e16f075ecae9f99c7a79a38af5f869aa46","kdf":"pbkdf2","kdfparams":{"c":262144,"dklen":32,"prf":"hmac-sha256","salt":"ae3cd4e7013836a3df6bd7241b12db061dbe2c6785853cce422d148a624ce0bd"},"mac":"517ead924a9d0dc3124507e3393d175ce3ff7c1e96529c6c555ce9e51205e9b2"},"id":"3198bc9c-6672-5ab3-d995-4942343ae5b6","version":3}'
+    this.timeout(0) // never
     const wallet = Wallet.fromV3(w, 'testpassword', true)
     assert.strictEqual(wallet.getAddressString(), '0x008aeeda4d805471df9b2a5b0f38a0c3bcba786b')
   })
   it("shouldn't work with (broken) mixed-case input files in strict mode", function() {
     const w =
       '{"Crypto":{"cipher":"aes-128-ctr","cipherparams":{"iv":"6087dab2f9fdbbfaddc31a909735c1e6"},"ciphertext":"5318b4d5bcd28de64ee5559e671353e16f075ecae9f99c7a79a38af5f869aa46","kdf":"pbkdf2","kdfparams":{"c":262144,"dklen":32,"prf":"hmac-sha256","salt":"ae3cd4e7013836a3df6bd7241b12db061dbe2c6785853cce422d148a624ce0bd"},"mac":"517ead924a9d0dc3124507e3393d175ce3ff7c1e96529c6c555ce9e51205e9b2"},"id":"3198bc9c-6672-5ab3-d995-4942343ae5b6","version":3}'
+    this.timeout(0) // never
     assert.throws(function() {
       Wallet.fromV3(w, 'testpassword')
     }) // FIXME: check for assert message(s)
@@ -760,6 +773,7 @@ describe('.fromKryptoKit()', function() {
       'qhah1VeT0RgTvff1UKrUrxtFViiQuki16dd353d59888c25',
       'testtest',
     )
+    this.timeout(0) // never
     assert.strictEqual(wallet.getAddressString(), '0x3c753e27834db67329d1ec1fab67970ec1e27112')
   })
 })