Free and open source voxel art tools - editor, thumbnailer and format
Retro Computer Image Library
Display, convert, and edit raster image and vector image files
Cross Platform GUI Toolkit
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
Source code for efficiently rendering parametrically defined surfaces
Vim editor ported to WebAssembly
3D Software Renderer in 700 Lines
Tool to plot 3d-graphic from an XML, EXCEL or parametrization
Functy is a 3D graph drawing package that generates immediate results.
Java 2D graphics/utility library
C/C++ library to add light and intuitive GUI to OpenGL and DX programs
A powerful C++ class library for image manipulation