head to head · open source
uBlock vs fingerprintjs
uBlock has 69,033 GitHub stars, 4,427 forks, 15 open issues and last shipped yesterday. fingerprintjs has 28,675 stars, 2,641 forks, 19 open issues and last shipped 3 days ago. uBlock leads on adoption by 141% (69,033 vs 28,675 stars). uBlock is written in JavaScript under GPL-3.0; fingerprintjs is written in TypeScript under MIT. uBlock has attracted 6% as many forks as stars, fingerprintjs 9%. uBlock was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (javascript), 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
| uBlock | fingerprintjs | |
|---|---|---|
| GitHub stars | ★ 69K | ★ 29K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 4.4K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick uBlock if
- You weight community size — 69K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches JavaScript
- 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 uBlock
[![Badge Commits]][Commit Rate] [![Badge Issues]][Issues] [![Badge Localization]][Crowdin] [![Badge License]][License] [![Badge NPM]][NPM] [![Badge Mozilla]][Mozilla] ![Badge Chrome] [![Badge Edge]][Edge] uBlock Origin (uBO) GitHub Releases Stable and development versions on Firefox, Chromium MV2, and Thunderbird. Must be placed manually into web browsers; the Chromium and Thunderbird versions usually won't auto update. Related: uBlock Origin Lite uBlock Origin (uBO) is a CPU and memory efficient [wide spectrum content blocker][Blocking] for Chromium and Firefox. It blocks ads, trackers, coin miners, popups…
read the full uBlock 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 uBlock or fingerprintjs more popular?
uBlock has 69,033 GitHub stars and fingerprintjs has 28,675. uBlock has the larger community by that measure.
Are uBlock and fingerprintjs free?
Both are open source. uBlock is licensed under GPL-3.0 and fingerprintjs under MIT. Neither carries a licence fee.
What is the difference between uBlock and fingerprintjs?
uBlock is written in JavaScript 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, uBlock or fingerprintjs?
Choose uBlock if you want the larger community (69,033 stars) or its GPL-3.0 licence terms. Choose fingerprintjs if its feature set, stack or MIT licence fits better. Both are self-hostable.