head to head · open source
Bluesky vs RedReader
Bluesky has 18,295 GitHub stars, 2,837 forks, 2,400 open issues and last shipped yesterday. RedReader has 2,661 stars, 526 forks, 457 open issues and last shipped 2 days ago. Bluesky leads on adoption by 588% (18,295 vs 2,661 stars). Bluesky is written in TypeScript under MIT; RedReader is written in Java under GPL-3.0. Bluesky has attracted 16% as many forks as stars, RedReader 20%. 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 | RedReader | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 2.7K |
| License | MIT | GPL-3.0 |
| Written in | TypeScript | Java |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 2.8K | ⑂ 526 |
| 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 RedReader if
- You want the RedReader feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Java
- You evaluated both and RedReader 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 RedReader
RedReader is an unofficial open source Android application for Reddit, listed under Community & Social / Social Networking. The project is written in Java and released under the GPL 3.0 license. It lives in the Android ecosystem and targets Reddit, with topics that include android, android app, android application, and reddit.
read the full RedReader overview →
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Frequently asked questions
Is Bluesky or RedReader more popular?
Bluesky has 18,295 GitHub stars and RedReader has 2,661. Bluesky has the larger community by that measure.
Are Bluesky and RedReader free?
Both are open source. Bluesky is licensed under MIT and RedReader under GPL-3.0. Neither carries a licence fee.
What is the difference between Bluesky and RedReader?
Bluesky is written in TypeScript and RedReader in Java. 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 RedReader?
Choose Bluesky if you want the larger community (18,295 stars) or its MIT licence terms. Choose RedReader if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.