KernelEx is an open source project compatiblity layer that allow new apps to be compatible with Microsoft Windows 98 and Microsoft Windows Millenium operating system.

LXC continuous integration and build scripts

Engine for making things with a MS-DOS feel, but for modern platforms

Single-file public domain libraries for C/C++

Tiny SVG rendering library in C

Tiny 2D vector graphics library in C

A Tiny Garbage Collector for C

A tutorial that explains how to use macOS's Cocoa API in Pure-C.

A cross platform lightweight single-header simple-to-use window abstraction library for creating graphical programs or libraries.

An *single-header* alternative, pure C-focused wrapper to Apple's Cocoa API for OS X app development. Requires little to no Objective-C knowledge to use. Based on the original Silicon by EimaMei! W…

New Executable (NE) for 16-bit Windows with NASM

Converts various MIDI-like formats such ash HMI and HMP into actual MIDI files

converts over 3,000 file formats to modern equivalents

Utilities for bare metal access to the High Definition Audio controller in DOS

displays contents of OMF object modules

CauseWay DOS Extender

High quality system independent, portable, open source libm implementation

Core Math functions for MS Windows

Midnight Commander's repository

Single-file FLAC decoder with a push-style API

A free, open source, CMM engine. It provides fast transforms between ICC profiles.

Super fast C++ .PNG writer/reader

A simple and easy-to-use library to load/save png images and manage png chunks

A library for some loosely related Microsoft compression formats, CAB, CHM, HLP, LIT, KWAJ and SZDD.

📚 Freely available programming books

A library and command-line tool to parse math expressions

Cross-platform C library to read data from PE/PE+ files (the format of Windows .exe and .dll files)

Open re-implementation of Medal of Honor: Allied Assault including Spearhead and Breakthrough expansions with modern features and bugfixes from ioquake3 with cross-platform support