JSON parser in standard C
Free (libre) font editor for Windows, Mac OS X and GNU+Linux
darktable is an open source photography workflow application
"Sigma File Manager" is a free, open-source, quickly evolving app
C package manager-ish
Generates XCI/NSP/HFS0/ExeFS/RomFS/Certificate dumps from Switch
Grief - BRIEF clone
SC is a C based meta/programming language/environment
a live MIDI sequencer for JACK
Builds of "FUSE" emulator with my own mods
3D Procedural Modelling and Procedural Texturing Tool in OpenGL/C++
Free Video Projector/Monitor Calibration Software
A shader-based software renderer written from scratch in C89
Complete solution for HDR photography
An itsy bitsy floating window manager (220~ sloc!)
Free yourself
Simple Scientific Workflow System for CAGE Analysis
Parallel SNP detection pipeline
An open infrastructure software to facilitate radiomics research.
smart Workflow Engine
angif fork with transparency layers (proof of concept implementation)