head to head · open source
Fluxer vs Tuta
Fluxer has 10,765 GitHub stars, 849 forks, 111 open issues and last shipped yesterday. Tuta has 8,110 stars, 653 forks, 1,001 open issues and last shipped 2 days ago. Fluxer leads on adoption by 33% (10,765 vs 8,110 stars). Fluxer is written in TypeScript under AGPL-3.0; Tuta is written in TypeScript under GPL-3.0. Fluxer has attracted 8% as many forks as stars, Tuta 8%. Fluxer 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.
← all 20902 open source comparisons
Side by side
| Fluxer | Tuta | |
|---|---|---|
| GitHub stars | ★ 11K | ★ 8.1K |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 849 | ⑂ 653 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Fluxer if
- You weight community size — 11K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Tuta if
- You want the Tuta feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Tuta fits your workflow better
About Fluxer
Fluxer Fluxer is a free and open source instant messaging and VoIP chat app built for friends, groups, and communities.
read the full Fluxer overview →
About Tuta
Tuta Mail makes encryption easy Tuta Mail is the secure email service with built in end to end encryption that enables you to communicate securely with anyone on all your devices. Forum for bug reports/feature requests: Roadmap: Issue and feature tracker: Please submit your feature requests via Reddit or via support mail. Web client • iOS App Store • Desktop Client Translating Tuta See TRANSLATING.md Building See BUILDING.md. Developing Tuta See HACKING.md. Contribution policy This project does not accept contributions or bug reports produced, in part or in full, with assistance of large language models…
More in Security & Privacy
Related comparisons
More Data Security & Privacy projects
Compare either of these against the rest of the Data Security & Privacy field.
Frequently asked questions
Is Fluxer or Tuta more popular?
Fluxer has 10,765 GitHub stars and Tuta has 8,110. Fluxer has the larger community by that measure.
Are Fluxer and Tuta free?
Both are open source. Fluxer is licensed under AGPL-3.0 and Tuta under GPL-3.0. Neither carries a licence fee.
What is the difference between Fluxer and Tuta?
Fluxer is written in TypeScript and Tuta in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Fluxer or Tuta?
Choose Fluxer if you want the larger community (10,765 stars) or its AGPL-3.0 licence terms. Choose Tuta if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.