A simple web-based tool for Spriting and Pixel art.

Scratch Blocks is a library for building creative computing interfaces.

visual programming blocks for 3D-printable design

Method Draw, the SVG Editor for Method of Action

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Powerful, fast and robust engine for converting 3D models into g-code instructions for 3D printers. It is part of the larger open source project Cura.

An Open Source Educational IDE.