head to head · open source
Umami vs Vemetric
Umami has 38,885 GitHub stars, 8,053 forks, 127 open issues and last shipped yesterday. Vemetric has 390 stars, 36 forks, 8 open issues and last shipped yesterday. Umami leads on adoption by 9,871% (38,885 vs 390 stars). Umami is written in TypeScript under MIT; Vemetric is written in TypeScript under AGPL-3.0. Umami has attracted 21% as many forks as stars, Vemetric 9%. Umami was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (analytics, product-analytics, web-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
| Umami | Vemetric | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 390 |
| License | MIT | AGPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 8.1K | ⑂ 36 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Umami if
- You weight community size — 39K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Vemetric if
- You want the Vemetric feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Vemetric fits your workflow better
About Umami
Umami is a privacy first, open source web and product analytics platform that gives site owners and product teams traffic, campaign, behavior, conversion and revenue reporting without cookies or surveillance, run either self hosted or in the cloud.
read the full Umami overview →
About Vemetric
Vemetric is an open source web and product analytics platform, written in TypeScript and licensed under AGPL 3.0, for teams and site owners who want to understand how users behave across a website or a product.
read the full Vemetric overview →
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Frequently asked questions
Is Umami or Vemetric more popular?
Umami has 38,885 GitHub stars and Vemetric has 390. Umami has the larger community by that measure.
Are Umami and Vemetric free?
Both are open source. Umami is licensed under MIT and Vemetric under AGPL-3.0. Neither carries a licence fee.
What is the difference between Umami and Vemetric?
Umami is written in TypeScript and Vemetric 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, Umami or Vemetric?
Choose Umami if you want the larger community (38,885 stars) or its MIT licence terms. Choose Vemetric if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.