head to head · open source
Bluesky vs Ech0
Bluesky has 18,364 GitHub stars, 2,872 forks, 2,400 open issues and last shipped yesterday. Ech0 has 2,085 stars, 161 forks, 6 open issues and last shipped yesterday. Bluesky leads on adoption by 781% (18,364 vs 2,085 stars). Bluesky is written in TypeScript under MIT; Ech0 is written in Go under AGPL-3.0. Bluesky has attracted 16% as many forks as stars, Ech0 8%. Bluesky was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Bluesky | Ech0 | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 2.1K |
| License | MIT | AGPL-3.0 |
| Written in | TypeScript | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.9K | ⑂ 161 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Bluesky if
- You weight community size — 18K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Ech0 if
- You want the Ech0 feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and Ech0 fits your workflow better
About Bluesky
Bluesky Social App Welcome friends! This is the codebase for the Bluesky Social app. Get the app itself: Web: bsky.app iOS: App Store Android: Play Store Development Resources This is a React Native application, written in the TypeScript programming language. It builds on the atproto TypeScript packages (like @atproto/api ), which are also open source, but in a different git repository. There is a small amount of Go language source code (in ./bskyweb/ ), for a web service that returns the React Native Web application. The Build Instructions are a good place to get started with the app itself. The Authenticated…
read the full Bluesky overview →
About Ech0
Ech0 Preview · Official Site & Documentation · Releases · Ech0 Hub A self hosted personal microblog where your timeline can be shared, discussed, and fully owned. Tools like Memos are great for capturing quick thoughts. Ech0 is built for what comes next: publishing those ideas to a personal timeline that others can follow and interact with. Run it on your own server, keep full control of your content, and keep a personal space that still feels connected through optional comments and sharing. It stays lightweight, easy to deploy, and fully open source. Great fit if you want to: run a personal public or semi…
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Frequently asked questions
Is Bluesky or Ech0 more popular?
Bluesky has 18,364 GitHub stars and Ech0 has 2,085. Bluesky has the larger community by that measure.
Are Bluesky and Ech0 free?
Both are open source. Bluesky is licensed under MIT and Ech0 under AGPL-3.0. Neither carries a licence fee.
What is the difference between Bluesky and Ech0?
Bluesky is written in TypeScript and Ech0 in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Bluesky or Ech0?
Choose Bluesky if you want the larger community (18,364 stars) or its MIT licence terms. Choose Ech0 if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.