head to head · open source
Rybbit vs Fathom Lite
Rybbit has 13,202 GitHub stars, 768 forks, 198 open issues and last shipped yesterday. Fathom Lite has 8,034 stars, 388 forks, 5 open issues and last shipped 8 months ago. Rybbit leads on adoption by 64% (13,202 vs 8,034 stars). Rybbit is written in TypeScript under AGPL-3.0; Fathom Lite is written in Go under MIT. Rybbit has attracted 6% as many forks as stars, Fathom Lite 5%. Rybbit was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (analytics, google-analytics), so they are genuine substitutes rather than adjacent tools.
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
| Rybbit | Fathom Lite | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 8.0K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | Go |
| Last push | 2026-11-02 | 2026-03-18 |
| Forks | ⑂ 768 | ⑂ 388 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Rybbit if
- You weight community size — 13K 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 Fathom Lite if
- You want the Fathom Lite feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and Fathom Lite fits your workflow better
About Rybbit
Open Source Web & Product Analytics Website Demo Documentation Discord License (AGPL 3) Contribute Rybbit is the modern open source and privacy friendly alternative to Google Analytics. It takes only a couple minutes to setup and is super intuitive to use. 🔍 View Live Demo See Rybbit running on a real life production site. 🚀 Getting Started There are two ways to start using Rybbit: 📚 Explore our documentation to learn more about installation, configuration, and usage. ✨ Key Features All key web analytics metrics including sessions, unique users, pageviews, bounce rate, session duration Session replays No…
read the full Rybbit overview →
About Fathom Lite
Fathom Lite simple website analytics ============================== Fathom Lite is a previous and open source version of Fathom Analytics (a paid, hosted Google Analytics alternative). It was the very first version of our software, and has been downloaded millions of times! While we are no longer adding features to this Lite version, we will be continuing to maintain it long term and fix any bugs that come up. Fathom Lite vs Fathom (hosted) Today’s Fathom Analytics is a hosted product with simple pricing based on monthly pageviews. The same core capabilities are included on every plan: for example API access, up…
read the full Fathom Lite overview →
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Frequently asked questions
Is Rybbit or Fathom Lite more popular?
Rybbit has 13,202 GitHub stars and Fathom Lite has 8,034. Rybbit has the larger community by that measure.
Are Rybbit and Fathom Lite free?
Both are open source. Rybbit is licensed under AGPL-3.0 and Fathom Lite under MIT. Neither carries a licence fee.
What is the difference between Rybbit and Fathom Lite?
Rybbit is written in TypeScript and Fathom Lite 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, Rybbit or Fathom Lite?
Choose Rybbit if you want the larger community (13,202 stars) or its AGPL-3.0 licence terms. Choose Fathom Lite if its feature set, stack or MIT licence fits better. Both are self-hostable.