head to head · open source
Zen Browser vs fingerprintjs
Zen Browser has 45,517 GitHub stars, 1,946 forks, 689 open issues and last shipped yesterday. fingerprintjs has 28,675 stars, 2,641 forks, 19 open issues and last shipped 3 days ago. Zen Browser leads on adoption by 59% (45,517 vs 28,675 stars). Zen Browser is written in C++ under MPL-2.0; fingerprintjs is written in TypeScript under MIT. Zen Browser has attracted 4% as many forks as stars, fingerprintjs 9%. Zen Browser 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
| Zen Browser | fingerprintjs | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 29K |
| License | MPL-2.0 | MIT |
| Written in | C++ | TypeScript |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 1.9K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Zen Browser if
- You weight community size — 46K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick fingerprintjs if
- You want the fingerprintjs feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and fingerprintjs fits your workflow better
About Zen Browser
Zen Browser Zen is a firefox based browser with the aim of pushing your productivity to a new level! Download • Website • Documentation • Release Notes Firefox Versions Release Is currently built using Firefox version 155.0.1 ! Twilight Is currently built using Firefox version RC 155.0.1 ! Contributing If you'd like to report a bug, please do so on our GitHub Issues page and for feature requests, you can use GitHub Discussions. Zen is an open source project, and we welcome contributions from the community! Please take a look at the contribution guidelines before getting started! Partners Thanks to all the…
read the full Zen Browser overview →
About fingerprintjs
FingerprintJS is an open source, client side, browser fingerprinting library that queries browser attributes and computes a hashed visitor identifier from them. Unlike cookies and local storage, a fingerprint stays the same in incognito/private mode and even when browser data is purged. FingerprintJS is available under the MIT license. Demo Visit to see your visitor identifier. Now, try visiting the same page in private/incognito mode and notice that the visitor identifier remains the same ! Installation npm CDN Run this code Resources 📕 API Reference ⚛️ Sample usage with React on the StackBlitz platform 🔑…
read the full fingerprintjs overview →
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Frequently asked questions
Is Zen Browser or fingerprintjs more popular?
Zen Browser has 45,517 GitHub stars and fingerprintjs has 28,675. Zen Browser has the larger community by that measure.
Are Zen Browser and fingerprintjs free?
Both are open source. Zen Browser is licensed under MPL-2.0 and fingerprintjs under MIT. Neither carries a licence fee.
What is the difference between Zen Browser and fingerprintjs?
Zen Browser is written in C++ and fingerprintjs 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, Zen Browser or fingerprintjs?
Choose Zen Browser if you want the larger community (45,517 stars) or its MPL-2.0 licence terms. Choose fingerprintjs if its feature set, stack or MIT licence fits better. Both are self-hostable.