Caldera: Your repos become a living city. Your vault becomes a living profile.
Caldera is an unusual social product for developers and note-takers who want discovery based on real repos and writing. It is free and open source, so the main trade-off is product maturity rather than price.
Caldera is a free, open-source social network built around GitHub and Obsidian. Your repositories become a living city on a shared map, and your Obsidian vault can become a living profile. You meet people by what they build and write.
Sign-up is via GitHub (about 30 seconds, no install) or an Obsidian install that keeps vault data on device unless you choose to share it. The site emphasizes privacy by default.
Repos become districts and buildings on a navigable city map.
Every member's city on one map, with neighborhoods as people and highways as friendships.
Optional Obsidian integration that keeps vault data on device by default.
No paid plan is advertised; sign-up with GitHub is free.
Caldera is free and open source. No paid plans are listed on the site.
| Plan | Price |
|---|---|
| Free | $0 |
An AI code editor for developers who write and own the code themselves.
An AI pair programmer inside existing IDEs.
Facts checked on October 22, 2026.
