head to head · open source
Matomo vs offen
Matomo has 21,880 GitHub stars, 2,896 forks, 2,578 open issues and last shipped yesterday. offen has 981 stars, 54 forks, 18 open issues and last shipped 7 months ago. Matomo leads on adoption by 2,130% (21,880 vs 981 stars). Matomo is written in PHP under GPL-3.0; offen is written in JavaScript under Apache-2.0. Matomo has attracted 13% as many forks as stars, offen 6%. Matomo was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (privacy), 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
| Matomo | offen | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 981 |
| License | GPL-3.0 | Apache-2.0 |
| Written in | PHP | JavaScript |
| Last push | 2026-09-17 | 2026-03-04 |
| Forks | ⑂ 2.9K | ⑂ 54 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Matomo if
- You weight community size — 22K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick offen if
- You want the offen feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and offen fits your workflow better
About Matomo
Matomo is an open source digital analytics platform for websites and apps, formerly known as Piwik. It lives in the PHP and MySQL web analytics ecosystem, and the provided description positions it as an open alternative to Google Analytics and Amplitude. The project lets an organization collect, visualise, and analyse visitor data from its own digital properties.
read the full Matomo overview →
About offen
Offen Fair Web Analytics is a free, open source, self hosted web analytics application for website operators and teams who want privacy compliant usage statistics with end to end encrypted data, and for the visitors who can review or delete their own data.
read the full offen overview →
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Frequently asked questions
Is Matomo or offen more popular?
Matomo has 21,880 GitHub stars and offen has 981. Matomo has the larger community by that measure.
Are Matomo and offen free?
Both are open source. Matomo is licensed under GPL-3.0 and offen under Apache-2.0. Neither carries a licence fee.
What is the difference between Matomo and offen?
Matomo is written in PHP and offen in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Matomo or offen?
Choose Matomo if you want the larger community (21,880 stars) or its GPL-3.0 licence terms. Choose offen if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.