head to head · open source
fingerprintjs vs BrowserOS
fingerprintjs has 28,487 GitHub stars, 2,623 forks, 19 open issues and last shipped 3 days ago. BrowserOS has 13,718 stars, 1,459 forks, 82 open issues and last shipped 2 days ago. fingerprintjs leads on adoption by 108% (28,487 vs 13,718 stars). fingerprintjs is written in TypeScript under MIT; BrowserOS is written in TypeScript under AGPL-3.0. fingerprintjs has attracted 9% as many forks as stars, BrowserOS 11%. BrowserOS was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (browser), 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
| fingerprintjs | BrowserOS | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 14K |
| License | MIT | AGPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 2.6K | ⑂ 1.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fingerprintjs if
- You weight community size — 28K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick BrowserOS if
- You want the BrowserOS 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 BrowserOS fits your workflow better
About fingerprintjs
FingerprintJS is an open source, client side browser fingerprinting library that queries browser attributes and computes a hashed visitor identifier from them, aimed at web developers and engineering teams that need to recognise returning browsers without depending on cookies or local storage.
read the full fingerprintjs overview →
About BrowserOS
BrowserOS is an open source agentic browser, written in TypeScript under AGPL 3.0, that puts AI agents inside a real Chromium browser on the user's own machine so they can work with real logged in accounts, and it is aimed at people who already use an agent harness such as Claude Code, Codex, Cursor, or any MCP agent and want that agent to handle web tasks instead of a sandbox.
read the full BrowserOS overview →
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Frequently asked questions
Is fingerprintjs or BrowserOS more popular?
fingerprintjs has 28,487 GitHub stars and BrowserOS has 13,718. fingerprintjs has the larger community by that measure.
Are fingerprintjs and BrowserOS free?
Both are open source. fingerprintjs is licensed under MIT and BrowserOS under AGPL-3.0. Neither carries a licence fee.
What is the difference between fingerprintjs and BrowserOS?
fingerprintjs is written in TypeScript and BrowserOS 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, fingerprintjs or BrowserOS?
Choose fingerprintjs if you want the larger community (28,487 stars) or its MIT licence terms. Choose BrowserOS if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.