head to head · open source
Bluesky vs Ech0
Bluesky has 18,295 GitHub stars, 2,837 forks, 2,400 open issues and last shipped yesterday. Ech0 has 2,056 stars, 159 forks, 6 open issues and last shipped 4 days ago. Bluesky leads on adoption by 790% (18,295 vs 2,056 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 | 2026-09-17 | 2026-09-14 |
| Forks | ⑂ 2.8K | ⑂ 159 |
| 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 is the open source social application codebase for the Bluesky Social app. It lives in the AT Protocol ecosystem, also called atproto, and it is written in TypeScript as a React Native application. The project provides client code for Web, iOS, and Android, and it builds on open source atproto packages such as @atproto/api, which live in a separate repository.
read the full Bluesky overview →
About Ech0
Ech0 is an open source, self hosted publishing platform for personal idea sharing. It lives in the open source self hosted microblog ecosystem, using Go and Vue, SQLite storage, and Markdown based posts. The project is built as a lightweight personal microblog, not as a full social network or a team workspace. Ech0 is licensed under AGPL 3.0. It stays lightweight and easy to deploy.
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Frequently asked questions
Is Bluesky or Ech0 more popular?
Bluesky has 18,295 GitHub stars and Ech0 has 2,056. 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 (18,295 stars) or its MIT licence terms. Choose Ech0 if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.