head to head · open source
Cinny vs certspotter
Cinny has 3,897 GitHub stars, 578 forks, 354 open issues and last shipped 5 days ago. certspotter has 1,174 stars, 104 forks, 18 open issues and last shipped 7 days ago. Cinny leads on adoption by 232% (3,897 vs 1,174 stars). Cinny is written in TypeScript under AGPL-3.0; certspotter is written in Go under MPL-2.0. Cinny has attracted 15% as many forks as stars, certspotter 9%. Cinny 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
| Cinny | certspotter | |
|---|---|---|
| GitHub stars | ★ 3.9K | ★ 1.2K |
| License | AGPL-3.0 | MPL-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-15 | 2026-09-13 |
| Forks | ⑂ 578 | ⑂ 104 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Cinny if
- You weight community size — 3.9K 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 certspotter if
- You want the certspotter feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches Go
- You evaluated both and certspotter fits your workflow better
About Cinny
Cinny is an open source Matrix client written in TypeScript under AGPL 3.0. It lives in the Matrix ecosystem and is presented as "yet another matrix client," focusing on a simple, elegant, and secure interface. Its stated goal is an instant messaging application that is easy for people and has a modern touch.
read the full Cinny overview →
About certspotter
Cert Spotter is a lightweight, open source Certificate Transparency log monitor from SSLMate that watches Certificate Transparency logs and alerts you when an SSL/TLS certificate is issued for any domain on your watch list, aimed at site operators, security teams, and PKI administrators who need to catch unauthorized certificates without operating a database.
read the full certspotter overview →
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Frequently asked questions
Is Cinny or certspotter more popular?
Cinny has 3,897 GitHub stars and certspotter has 1,174. Cinny has the larger community by that measure.
Are Cinny and certspotter free?
Both are open source. Cinny is licensed under AGPL-3.0 and certspotter under MPL-2.0. Neither carries a licence fee.
What is the difference between Cinny and certspotter?
Cinny is written in TypeScript and certspotter 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, Cinny or certspotter?
Choose Cinny if you want the larger community (3,897 stars) or its AGPL-3.0 licence terms. Choose certspotter if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.