There are thousands of open source projects for every type of tech platform that we use. According to Github’s 2025 Octoverse report, open source development reached 1.12 billion contributions across public repositories. And 63% of Github’s 630 million repositories are open source or public.
If building websites isn’t your focus, here are a few popular open source projects and open protocols that you can contribute to.
Federated social
- ATProto
- Bluesky
- Mastodon
- Threads
Browsers & infrastructure
- Brave
- Element
- Firefox
- Matrix
- Signal
Dev & creative tools
- Audacity
- Blender
- GIMP
- Linux
- Inkscape
- Krita
- Kdenkive
- Ubuntu