sources.md

title	category
C	Languages

AlgoWiki C

A curated list of C good stuff. This list contains only free software for code, and sellers who aren't evil for physical resources.

This is released under the GNU Free Documentation License - its text is provided in the LICENSE file.

Table of Contents

• Compilers
• Crypto
• Database
• Documentation Generation
• Editors
• Environments
• Frameworks
• Game Programming
  • Engines
  • Resources
• Generic Programming
• Graphics
• Graphical User Interface
• JSON
• Learning, Reference and Tutorials
  • Online
  • Physical
• Multimedia
• Networking and Internet
• Numerical
• Parallel Programming
• Regex
• Serialization
• Source Code Collections
• Standard Libraries
• String Manipulation
• Testing
• Text Editor Extensions
  • Emacs
  • Vim
• Utilities
• XML

Compilers

• Clang - A C compiler for LLVM. Supports C11. NCSA.
• CompCert - A fully-verified C compiler. Supports almost all of C89. GNU GPL2.1.
• GCC - Provides a C compiler as part of its compiler set. Supports C11 and OpenMP. GNU GPL3.
• PCC - A venerable C compiler. Supports C99. Various licenses, all free.
• TCC - Tiny C Compiler; a small, fast C compiler. Supports C99 (except complex types). GNU GPL2.1.

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Crypto

• GnuTLS - A secure communication library, implementing SSL, TLS and DTLS. GNU LGPL2.1.
• libgcrypt - A general-purpose cryptography library, with a range of available ciphers. GNU GPL2.1 and GNU LGPL2.1.
• LibreSSL - A BSD fork of OpenSSL. Various licenses, all semi-free.
• OpenSSL - Implementation of the SSL and TLS protocols, and also includes a cryptography library. Dual Licensed under the OpenSSL License and the SSLeay License
• libsodium - A modern and easy-to-use crypto library. Expat.
• libtomcrypt - A fairly comprehensive, modular and portable cryptographic toolkit. Public domain.
• mbed TLS - Another crypto implementation for C. GNU GPL2.1.

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Database

This lists databases and data stores with C APIs.

• Hiredis - A minimalistic client library for Redis. 3-clause BSD.
• LMDB - An ultra-fast, ultra-compact key-value embedded data store. newOpenLDAP.
• MariaDB - A robust, scalable and reliable SQL server, designed to be a drop-in replacement for MySQL. 3-clause BSD.
• mongo-c-driver - A high-performance client library for MongoDB. Apache2.0.
• PostgreSQL - A powerful object-relational database system. PostgreSQL licence
• Redis - An advanced key-value store. 3-clause BSD.
• sophia - A modern, embeddable key-value database. FreeBSD.
• SQLite - A self-contained, serverless, zero-configuration, transactional SQL database engine with a C interface. Public domain.
• UnQLite - A self-contained, serverless, zero-configuration, transactional NoSQL engine with a C interface. FreeBSD.

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Documentation Generation

• Cxref - Generates documentation of C programs in either LaTeX, HTML, RTF or SGML. GNU GPL2.1.
• DocOnce - A modestly-tagged markup language that can be used to generate a range of formats. 3-clause BSD.
• Docutils - A text-processing system to convert plain text documentation into a range of useful formats. Public domain.
• Doxygen - The de-facto standard tool for generating C documentation from annotated sources. Can generate a large range of formats. GNU GPL2.1.
• GTK-Doc - A tool for generating C documentation from annotated sources. Has support for Autotools. GNU LGPL2.1.

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Editors

These are specifically fancier, IDE-type editors. If you want a programmer's text editor, and yours doesn't support C, I'd be quite surprised.

• Anjuta DevStudio - The GNOME IDE. GNU GPL3.
• Code::Blocks - An extensible, configurable IDE supporting C. GNU GPL3.
• CodeLite - A cross-platform IDE. GNU GPL2.1.
• Eclipse - An IDE written in Java. EPL.
• Geany - A very small and fast IDE. GNU GPL2.1.
• KDevelop - The KDE IDE. GNU GPL2.1.
• NetBeans - Another IDE written in Java. GNU GPL2.1 or CDDL.

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Environments

This is a list of technologies designed to bring Windows into the 21st century with respect to support for C.

• Cygwin - Designed to emulate a POSIX-compatible environment extensively under Windows. Various licenses, all free.
• MinGW-w64 - A minimalist environment for C development on Windows with 64 bit support. Various licenses, all free.

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Frameworks

This section has big libraries that provide data structures and other stuff you expect of a 'modern' standard library.

• APR - Apache Portable Runtime; another library of cross-platform utility functions. Apache2.0.
• C Algorithms - A collection of common algorithms and data structures for C. ISC.
• CPL - The Common Pipeline Library; a set of libraries designed to be a comprehensive, efficient and robust software toolkit. GNU GPL2.1.
• EFL - A large collection of useful data structures and functions. Various licenses, all free.
• GLib - A library of utility functions and structures, designed to be portable, efficient and powerful. GNU LGPL3.
• GIO - A modern and easy-to-use VFS API. GNU LGPL3.
• GObject - An object-oriented system and object model for C. GNU LGPL3.
• libnih - A lightweight library of C functions and structures. GNU GPL2.1.
• libU - A small library of basic utilities, including memory allocation, string manipulation and logging. 3-clause BSD.
• pblSet - A large, portable collection of basic functions, data structures and utilities. GNU LGPL2.1.
• qlibc - A simple and powerful C library, designed as a replacement for GLib while focusing on being small and light. qLib license (similar to FreeBSD).
• stb - A range of single-file libraries for C. Public domain.

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Game Programming

Engines

These are provided as examples of C game programming code.

• Corange - A game engine in pure C. FreeBSD.
• ioquake3 - The Quake3 engine, freed at last. GNU GPL2.1
• Quake - The Quake engine. GNU GPL2.1.
• Quake2 - The Quake2 engine. GNU GPL2.1.

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Resources

These are libraries of all sorts that are useful for game programming.

• Allegro - A cross-platform, video game development and multimedia library. zlib.
• Chipmunk2D - A fast and lightweight 2D game physics library. Expat.
• CSFML - A binding for SFML in C. zlib.
• FreeGLUT - An alternative to the OpenGL Utility Toolkit. Allows the creation and management of windows with OpenGL contexts. X11.
• GLFW - A multi-platform library for creating windows with OpenGL contexts. zlib.
• libao - A cross-platform audio library with a wide variety of outputs. GNU GPL2.1.
• RetroArch - The reference frontend for libretro. GNU GPL3.
• SDL - A cross-platform library designed to provide low-level access to audio, keyboard, mouse, joystick and graphics hardware via OpenGL. zlib.
• SDL2- A a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL. This is the most current version. zlib

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Generic Programming

• klib - Small and lightweight implementations of common algorithms and data structures. Expat.
• SGLIB - Simple Generic Library; an implementation of a range of generic programming structures and idioms in C. GNU GPL3.

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Graphics

• Cogl - A GPU graphics and utilities API. GNU LGPL2.1.
• Clutter - A UI library based on OpenGL. GNU LGPL2.1.
• libimagequant - Small, portable library for high-quality conversion of RGBA images to 8-bit indexed colour images. FreeBSD.
• libjpeg - A library for reading and writing JPEG files. Free software license (check the source).
• libjpeg-turbo - A faster library for reading and writing JPEG files. Various licences.
• libRSVG - A library to render SVG files using Cairo. GNU LGPL2.1.
• libxmi - A function library for rasterizing 2D vector graphics. GNU GPL3.
• mozjpeg - An improved JPEG encoder. 3-clause BSD.
• OpenGL - The industry standard for high-performance graphics, with a native C binding. Various licenses.

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Graphical User Interface

These are specifically widget toolkits.

• Elementary - A widget toolkit. Part of the EFL. GNU LGPL2.1.
• GTK+ - A cross-platform widget toolkit. GNU LGPL2.1.
• IUP - Another cross-platform widget toolkit. Expat.
• Tk - A basic widget toolkit. Part of Tcl/Tk. Tcl/Tk License.
• XForms Toolkit - A widget toolkit designed for the XWindow system. GNU LGPL2.1.

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JSON

• Jansson - A C library for encoding, decoding and manipulating JSON. Expat.
• jsmn - A minimalistic JSON parser. Expat.
• json-c - A library for working with JSON. Expat.
• WJElement - Advanced JSON manipulation library, with support for JSON Schema. GNU GPL3.
• YAJL - A fast C JSON streaming parser library. ISC

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Learning, Reference and Tutorials

This is a list of resources for learning C programming in general, or something useful relating to C programming.

Online

Reference

• CERT C Coding Standard
• C FAQ - comp.lang.c Frequently Asked Questions
• C language reference
• Draft C11 standard
• GNU C Reference Manual
• Robert Pike's notes on programming in C

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Beginner

• A tutorial on pointers
• Building C Projects
• C Programming Wikibook
• Introduction to 'fun' C
• POSIX Threads Programming tutorial (a little dated, but most of it is still valid and useful)
• The GNU C Programming Tutorial (online PDF)
• Templating in C

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Intermediate

• 8 gdb tricks you should know
• 10 C99 tricks
• Diving into concurrency: trying out mutexes and atomics
• Introduction to OpenMP (video)
• OpenMP tutorial (for the OpenMP3 standard)
• memcpy vs memmove
• MPI tutorial
• The lost art of C structure packing
• What a C programmer should know about memory
• What every C programmer should know about undefined behaviour

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Advanced

• A quick tutorial on implementing and debugging malloc, free, calloc, and realloc
• Bit twiddling hacks
• I do not know C
• Implementing smart pointers for the C programming language
• Inline functions in C
• Metaprogramming custom control structures in C
• Some dark corners of C
• Writing efficient C and C code optimization

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Self-study Courses

• C Programming Language Certified Associate preparation course

Physical

Reference

• C: A Reference Manual 5E - A full reference book for C99.
• C Pocket Reference - A concise reference book for C99.
• The C Programming Language 2E - The original book on C, by its creators.

Books

• A Tutorial on Pointers and Arrays in C
• Advanced Linux Programming
• Beej's Guide to C Programming
• Beej's Guide to Network Programming
• Build Your Own Lisp
• C Programming - Wikibooks
• Deep C
• Essential C
• Learn C the hard way
• Object Oriented Programming in C
• The C book
• The Craft of Text Editing or A Cookbook for an Emacs
• The GNU C Programming Tutorial
• The New C Standard - An Annotated Reference
• TONC GBA Programming - Game Boy Advance Development
• Using C on the UNIX System - David A. Curry
• Let us C - Yashwant Kanetkar
• C Notes for professionals

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Beginner

• C Primer Plus 6E - A complete tutorial on programming in C11.
• C Programming: A Modern Approach - An excellent book to learn the basics from C from.
• Head First C - A 'head-first' style book for learning C.

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Intermediate

• 21st Century C - A very good second programming book on C.
• Understanding and Using C Pointers - An in-depth resource on pointers in C.
• ZeroMQ - A book for using ZeroMQ with C.

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Advanced

• Expert C Programming: Deep C Secrets - An interesting, in-depth and entertaining look at the innards of C.

Multimedia

• FFMPEG - A complete, cross-platform solution to record, convert and stream audio and video. GNU LGPL2.1, with some parts under GNU GPL2.1.
• GStreamer - A framework for audio and visual media. GNU LGPL2.1.
• lodepng - A simple PNG image decoder and encoder, requiring no other dependencies. 3-clause BSD.

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Networking and Internet

• asnlc - A compiler of ASN.1 specifications into C source code. FreeBSD.
• czmq - A high-level binding for ZeroMQ. MPL2.0
• GNU adns - An advanced, easy-to-use, asynch-capable DNS client library and utilities. GNU GPL3.
• GNU SASL - An implementation of the Simple Authentication and Security Layer and a few common SASL mechanism. GNU GPL3.
• GnuTLS - A secure communication library, implementing SSL, TLS and DTLS. GNU LGPL2.1.
• gumbo-parser - An HTML5 parsing library in C99. Apache2.0.
• http-parser - An HTTP request/response parser. Expat.
• ldns - A library to simplify DNS programming. GNU LGPL2.1.
• libcurl - A client-side URL transfer library, supporting a wide range of formats. curl license
• LibEtPan - A mail library providing an efficient network for IMAP, SMTP, POP and NNTP. 3-clause BSD.
• libev - Yet another event loop. FreeBSD.
• libevent - An event loop replacement for network servers. 3-clause BSD.
• libgss - Generic Security Service. GNU GPL3.
• libhttpd - A library to add basic web server capabilities to an application or embedded device. GNU GPL3.
• libidn - An implementation of the Stringprep, Punycode and IDNA specifications. GNU LGPL2.1.
• libmicrohttpd - A small C library that makes it easy to run an HTTP server as part of another application. GNU LGPL2.1.
• libsoup - A GNOME HTTP client/server library. Uses GObject. GNU LGPL2.1.
• LibreSSL - A BSD fork of OpenSSL. Various licenses, all semi-free.
• lwan - An experimental, scalable, high-performance HTTP server. GNU GPL2.1.
• mihl - A library for implementing an embedded HTTP server. FreeBSD.
• mongoose - Embedded web server for C. GNU GPL2.1.
• nanomsg - A C-based implementation of ZeroMQ. Expat.
• neon - An HTTP and WebDAV client library with a C interface. GNU LGPL3.
• onion - HTTP server library, designed to be easy to use. Apache2.0.
• OpenSSL - Implementation of the SSL and TLS protocols, and also includes a cryptography library. Dual Licensed under the OpenSSL License and the SSLeay License
• oSip - A SIP implementation in C without additional dependencies. GNU GPL3.
• socket99 - A wrapper library for the BSD sockets API.
• Tox - A communication platform, designed to be a Skype-killer. GNU GPL3.
• twitc - A mini C library for interacting with the Twitter OAuth API. GNU GPL3.
• ZeroMQ - High-performance message passing networking library. Implemented in C++, but has a C interface. GNU LGPL3.

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Numerical

• apophenia - A library for statistical and scientific computing. GNU GPL2.1 with some exceptions.
• ATLAS - Automatically Tuned Linear Algebra Software. 3-clause BSD.
• BLAS - Basic Linear Algebra Subprograms; a set of routines that provide vector and matrix operations. BLAS license
• CRlibm - Correctly Rounded mathematical library; a modern implementation of a range of numeric routines. GN LGPL3.
• Cuba - A library for multidimensional numerical integration. GNU LGPL3.
• FFTW - The Fastest Fourier Transform in the West; a highly-optimized fast Fourier transform routine. GNU GPL2.1.
• FLINT - Fast Library for Number Theory; a library supporting arithmetic with numbers, polynomials, power series and matrices, among others. GNU GPL2.1.
• GLPK - GNU Linear Programming Kit; a package designed for solving large-scale linear programming, mixed integer programming and other related problems. GNU GPL3.
• GMP - GNU Multple Precision Arithmetic Library; a library for arbitrary-precision arithmetic. GNU GPL2.1 and GNU LGPL2.1.
• GNU MPC - A library for complex number arithmetic. GNU LGPL3.
• GNU MPFR - A library for arbitrary-precision floating-point arithmetic. GNU LGPL2.1.
• GNU MPRIA - A portable mathematics library for multi-precision rational interval arithmetic. GNU GPL3.
• GSL - The GNU Scientific Library; a sophisticated numerical library. GNU GPL3.
• KISS FFT - A very simple fast Fourier transform library. 3-clause BSD.
• LAPACKE - A C interface to LAPACK. 3-clause BSD.
• PARI/GP - A computer algebra system for number theory; includes a compiler to C. GNU GPL3.
• PETSc - A suite of data structures and routines for scalable parallel solution of scientific applications modelled by partial differential equations. FreeBSD.
• SLEPc - A software library for the solution of large, sparse eigenvalue problems on parallel computers. GNU LGPL3.
• Yeppp! - Very fast, SIMD-optimized mathematical library. 3-clause BSD.

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Parallel Programming

• cchan - A small library for channel constructs for inter-thread communication. Public domain.
• ck - Concurrency primitives, safe memory reclamation mechanisms and non-blocking data structures. FreeBSD.
• MPICH - Another implementation of MPI. MPICH licence.
• OpenMP - A set of C pragmas designed to allow for easy parallelization of code. Standard (licensing not applicable).
• OpenMPI - A message passing interface implementation. 3-clause BSD.
• PETSc - A suite of data structures and routines for scalable parallel solution of scientific applications modelled by partial differential equations. FreeBSD.
• pth - A portable implementation for non-preemptive priority-based scheduling for multiple threads of execution. GNU GPL3.
• pthreads - The POSIX thread library. Standard (no license applicable).
• SLEPc - A software library for the solution of large, sparse eigenvalue problems on parallel computers. GNU LGPL3.
• TinyCThread - A portable, small implementation of the C11 threads API. zlib.

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Regex

"Some people, when confronted with a problem, think 'I know, I'll use regular expressions'. Now they have two problems." - Jamie Zawinski.

• PCRE - An implementation of regexes identical to that of Perl 5. 3-clause BSD.
• SLRE - Super Light Regular Expression library; a very small implementation of a subset of Perl regex syntax. GNU GPL2.1.
• TRE - A POSIX-compliant, feature-full regex library. FreeBSD.
• T-Rex - Another tiny regex library. zlib.

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Serialization

• c-capnproto - An implementation of the Cap'n Proto serialization protocol. Expat.
• libavro - A C implementation of the Avro data serialization system. Apache2.0.
• msgpackalt - A simple, light and fast binary serialization library. 3-clause BSD.
• protobuf-c - An implementation of Google Protocol Buffer in C. FreeBSD.
• xdr - External Data Representation; a standard for data serialization. Standard (no license applicable).

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Source Code Collections

This contains collections of small source code. If you want something big and integrated, check the Frameworks section.

• CCAN - Modelled after Perl's CPAN, this is a big collection of C code that does stuff. The full list is here. Various licenses (all free software).
• clib - Something of a package manager for C. Comes with a bunch of libraries of its own. Expat.
• gnulib - A collection of common GNU code. GNU GPL3.
• libdjb - A collection of libraries doing various things. (Apparently) public domain.
• ulib - Another collection of source code. Expat.

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Standard Libraries

This contains standard C libraries.

• Bionic - Google's C standard library, developed for Android. 3-clause BSD
• dietlibc - A C standard library designed for the smallest possible binaries. GNU GPL2.1.
• glibc - The GNU C Library; an implementation of the C standard library. GNU LGPL3.
• musl - A standard C library, compatible with POSIX 2008 and C11. Designed for static linking. Expat.

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String Manipulation

• bstrlib - The Better String Library. 3-clause BSD or GNU GPL2.1.
• ICU - International Components for Unicode; a library for Unicode support. ICU license.
• libunistring - A library for manipulating Unicode strings in C. GNU LGPL3.
• libgiconv - A text conversion library. GNU LGPL2.1.
• SDS - Simple Dynamic Strings; a library for handling C strings in a simpler way, but one that is compatible with normal C string functions. Available via clib. FreeBSD.

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Testing

• CHEAT - A very simple unit testing framework. FreeBSD.
• Check - A unit testing framework for C. GNU LGPL2.1.
• CMock - A mock/stub generator for C. Expat.
• cmocka - A unit testing framework with support for mock objects. Apache2.0.
• Criterion - A KISS, non-intrusive C test framework. Expat.
• CUnit - Another unit testing framework for C. GNU LGPL2.1.
• minunit - Minimal unit testing framework for C. Expat.
• Unity - A simple unit testing framework for C. Expat.

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Text Editor Extensions

While practically any decent programmer's text editor supports C, there are some extensions that make it more pleasant. This is categorized by editor.

Emacs

• CEDET - Collection of Emacs Development Environment Tools; designed to provide IDE-like features to Emacs. Built-in. GNU GPL2.1.
• Flycheck - Modern syntax checking. For C, it can use either GCC or Clang as a back-end. GNU GPL3.
• Yasnippet - A template system, with C templates for common code snippets. GNU GPL3.

Vim

• Syntastic - Syntax checking and linting. Do What The Fuck You Want To license.
• YouCompleteMe - A code completion engine for Vim. GNU GPL3.

Tools

This is a list of useful programs to help you write and debug C code which are not editors, libraries or compilers.

• adlint - A static analyzer. Supports all of C89 and part of C99. GNU GPL3.
• aimake - A build tool designed to avoid complex configurations. GNU GPL3.
• Artistic Style - A fast and small automatic source code formatter that supports C. GNU LGPL2.1.
• Autoconf - An extensible package of M4 macros that produce shell scripts to automatically configure software source code packages. Part of the Autotools. GNU GPL3.
• Automake - A tool for automatically generating Makefile.in files compliant with the GNU Coding Standards. Requires the use of Autoconf. Part of the Autotools. GNU GPL3.
• address-sanitizer - A fast memory error detector. Apache2.0.
• biicode - A modern dependency manager for C. Expat.
• c - Compile and execute C "scripts" in one go on the command line. Also has shebang support. Expat.
• c2html - Converts C source files to highlighted HTML. GNU GPL2.1.
• c99sh - Run C files using hash-bang. FreeBSD.
• CBMC - C Bounded Model Checker; a tool for verification of array bounds, pointer safety and user-specified assertions. Original BSD.
• cdecl - An online service to translate C declarations into English and vice versa. Public domain.
• cinclude2dot - Graphs include dependencies in a C project using Graphviz. GNU GPL3.
• Complexity - A tool for measuring the complexity of C source code. GNU GPL3.
• DDD - A graphical front-end for a range of command-line debuggers. GNU GPL3.
• fab - A build system that helps build optimally every time. GNU GPL3.
• GDB - The GNU Project debugger; a debugger for C. GNU GPL3.
• Glade - A RAD tool to enable quick development of GTK+ GUIs. GNU LGPL2.1.
• GMSL - GNU Make Standard Library; a collection of additional functionality for GNU Make. GNU GPL3.
• GNU Global - A source code tagging tool which works with C. GNU GPL3.
• gprof - A performance analysis tool. Part of GNU binutils. GNU GPL3.
• Highlight - Converts source code to formatted text with nice highlighting. GNU GPL2.1.
• include-what-you-use - Helps find unecessary inclusions and make suggestions for fixing them. Based on LLVM/Clang (and only works with it). NCSA.
• indent - Formats C source code automatically to make it easier to read. Also converts from one style of source to another. GNU GPLv3.
• Jam - A build system, designed to be easier than make. Understands C build rules implicitly. Jam License.
• Libtool - A generic library support script. GNU GPL3.
• Make - A tool which controls the generation of executables and other non-source files of a program. GNU GPLv3.
• qo - A build system that works without a separate config file. Expat.
• rr - A debugger that records non-deterministic executions to allow for deterministic debugging. FreeBSD.
• tup - A very fast, file-based, cross-platform build system. GNU GPL2.1.
• unifdef - Removes #ifdef and #if directives with their delimited text without touching any other part of the file. 3-clause BSD and FreeBSD.
• Valgrind - A range of dynamic analysis tools, including a leak checker. GNU GPL2.1.

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Utilities

This is a 'catch-all' category for anything that doesn't fit well anywhere else.

• ApeTagLibs - A C library for working with APEv2 tags. Expat.
• bfd - A library for manipulating binary object files. Part of GNU binutils. GNU GPL2.1.
• ccv - C-based/Cached/Core Computer Vision library; modern computer vision. 3-clause BSD.
• cf4ocl - The C Framework for OpenCL; a cross-platform object-oriented framework for developing and benchmarking OpenCL projects. GNU LGPL3.
• CommonMark - A C implementation of the CommonMark spec. Variety of licenses, all free.
• CException - A C implementation of exceptions. Expat.
• docopt.c - A C implementation of a command-line option parser. Expat.
• dyncall - Another foreign function interface library. Expat.
• FANN - Fast Artifical Neural Network library; an implementation of neural networks. GNU GPL2.1.
• gjrand - A library of random-number generation routines. GNU GPL2.1.
• GNU FreeIPMI - An in-band and out-of-band IPMI implementation. GNU GPL3.
• GNU Libffcall - A collection of libraries for building foreign function interfaces. GNU GPL3.
• Hans Boehm GC - Garbage collection for C? Don't mind if I do! Various licenses, all free.
• huffandpuff - A minimal Huffman encoder and decoder. Public domain.
• iniparser - A parser for .ini files. Expat.
• jemalloc - A malloc implementation that emphasizes avoidance of fragmentation and scalable concurrency support. FreeBSD.
• kdtree - A simple library for working with KD-trees. 3-clause BSD.
• libavl - A library containing a range of self-balancing binary trees. GNU GPL2.1.
• libbson - A BSON utility library. Apache2.0.
• libCello - A library introducing higher-level programming to C. 3-clause BSD.
• libffi - A portable foreign-function interface library. Expat.
• libgit2 - Pure C implementation of Git. GNU GPL2 with a linking exception.
• libmpv - A music-playing library. Compile with ./waf configure --disable-cplayer --enable-libmpv-shared to not have the music player. GNU GPL2.1.
• libnfc - A platform-independent Near-Field Communication library. GNU LGPL3.
• libPhenom - An eventing framework for building high-scalability and high-performance systems. Apache2.0.
• libucl - A universal configuration library parser. FreeBSD.
• libudp - An implementation of the Universal Design Pattern in C. GNU GPL3.
• libuv - Cross-platform asynchronous I/O. Expat.
• libYAML - A YAML 1.1 parser and emitter. Expat.
• lzo - A very fast data compression library. GNU GPL2.1.
• mpc - A parser combinator library. FreeBSD.
• ncurses - Coloured terminal UI library. GNU GPL3.
• nope.c - A C-language-based, ultra-light software platform for scalable server-side and networking applications (think node.js for C programmers). GNU GPL2.1.
• pbc - A protocol buffers library. Expat.
• rabbitmq-c - A client library for RabbitMQ. Expat.
• Ragel - A DSL for state machines that compiles to C. GNU GPL3.
• tcmalloc - A fast, reduced-contention malloc implementation. Part of gperftools. 3-clause BSD.
• uthash - A hash table implementation, allowing existing structures to be stored in a hash table easily. 1-clause BSD
• Viola - A simplification of libCello. Expat.
• zlib - A massively-spiffy yet delicately-unobtrusive compression library. 3-clause BSD.

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XML

"XML is crap. Really. There are no excuses. XML is nasty to parse for humans, and it's a disaster to parse even for computers. There's just no reason for that horrible crap to exist." - Linus Torvalds

• Expat - A stream-oriented XML parser. Expat.
• ezXML - An easy-to-use, fast and lightweight XML parser. Expat.
• libroxml - Another library for parsing XML. GNU LGPL2.1.
• libxml2 - A standards-compliant, portable XML parser. Expat.
• mini-xml - A small XML reading and writing library. No dependencies aside from C standard library. GNU LGPL2.1 with static linking exception.
• VTD-XML - A very fast XML processing framework. GNU GPL2.1.

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