head to head · open source
Fluxer vs certificates
Fluxer has 10,318 GitHub stars, 760 forks, 111 open issues and last shipped today. certificates has 8,885 stars, 597 forks, 299 open issues and last shipped 3 days ago. Fluxer leads on adoption by 16% (10,318 vs 8,885 stars). Fluxer is written in TypeScript under AGPL-3.0; certificates is written in Go under Apache-2.0. Fluxer has attracted 7% as many forks as stars, certificates 7%. 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.
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Side by side
| Fluxer | certificates | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 8.9K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-20 | 2026-09-17 |
| Forks | ⑂ 760 | ⑂ 597 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Fluxer if
- You weight community size — 10K 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 certificates if
- You want the certificates feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and certificates fits your workflow better
About Fluxer
Fluxer is a free and open source instant messaging and VoIP chat application built for friends, groups, and communities. The project's tagline describes it as messaging with privacy and community focus, and the GitHub description repeats the same core purpose. The repository is written in TypeScript and is distributed under the AGPL 3.0 license.
read the full Fluxer overview →
About certificates
step ca is an open source online certificate authority that issues X.509 and SSH certificates and runs as an ACME server, built for DevOps teams that need automated certificate management without a commercial PKI contract.
read the full certificates overview →
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Frequently asked questions
Is Fluxer or certificates more popular?
Fluxer has 10,318 GitHub stars and certificates has 8,885. Fluxer has the larger community by that measure.
Are Fluxer and certificates free?
Both are open source. Fluxer is licensed under AGPL-3.0 and certificates under Apache-2.0. Neither carries a licence fee.
What is the difference between Fluxer and certificates?
Fluxer is written in TypeScript and certificates 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, Fluxer or certificates?
Choose Fluxer if you want the larger community (10,318 stars) or its AGPL-3.0 licence terms. Choose certificates if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.