Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
Improved Quake III Arena engine
Embeddable JSON Database engine C library
Ultra-lightweight JavaScript engine for the Internet of Things
Public repository of the Micro QuickJS Javascript Engine
Powerful development framework for creating virtually anything
The PHP Interpreter
Efficient binary-decimal & decimal-binary conversion routines for IEEE
Bloat-free Graphical User interface for C++ with minimal dependencies
Simple DirectMedia Layer
Lua Virtual Reality engine
MLT Multimedia Framework
3D game engine/framework in C, with Luajit and Python bindings now
CGL (C Game Library) is a multipurpose library
Capstone disassembly/disassembler framework
A tiny JavaScript runtime
Dynamic Instrumentation Tool Platform
Lexbor is development of an open source HTML Renderer library
A real time inference engine for temporal logical specifications
A multi-posix-platform abstraction layer for creating desktop apps
CFD-related Fortran libraries and applications
Industrial Strength NoSQL Application Development Platform
Orx: Data-Driven Game Engine
database library/engine
A friendly Forth compiler with a little difference