head to head · open source
fingerprintjs vs hermes-browser-extension
fingerprintjs has 28,684 GitHub stars, 2,642 forks, 19 open issues and last shipped 5 days ago. hermes-browser-extension has 1,774 stars, 169 forks, 15 open issues and last shipped 2 days ago. fingerprintjs leads on adoption by 1,517% (28,684 vs 1,774 stars). fingerprintjs is written in TypeScript under MIT; hermes-browser-extension is written in JavaScript under MIT. fingerprintjs has attracted 9% as many forks as stars, hermes-browser-extension 10%. hermes-browser-extension 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
| fingerprintjs | hermes-browser-extension | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 1.8K |
| License | MIT | MIT |
| Written in | TypeScript | JavaScript |
| Last push | 2026-10-31 | 2026-11-03 |
| Forks | ⑂ 2.6K | ⑂ 169 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fingerprintjs if
- You weight community size — 29K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick hermes-browser-extension if
- You want the hermes-browser-extension feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and hermes-browser-extension 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. 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 →
About hermes-browser-extension
Hermes Browser Extension Browser native side panel for Hermes Agent — connect active web context through a local gateway, Hermes Cloud, or a self hosted remote gateway. Created by Jon Komet ( @abundantbeing ). Community extension for Hermes Agent by Nous Research. Public v0.3.2 · Load unpacked · Local / Hermes Cloud / Remote · Full Hermes runtime tools Not on the Chrome Web Store yet. What it is Hermes Browser Extension is not a browser chatbot. It is a Chrome/Edge/Chromium side panel for the real Hermes Agent runtime. Choose a local gateway, attach to a signed in Hermes Cloud agent tab, or connect to a self…
read the full hermes-browser-extension overview →
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Frequently asked questions
Is fingerprintjs or hermes-browser-extension more popular?
fingerprintjs has 28,684 GitHub stars and hermes-browser-extension has 1,774. fingerprintjs has the larger community by that measure.
Are fingerprintjs and hermes-browser-extension free?
Both are open source. fingerprintjs is licensed under MIT and hermes-browser-extension under MIT. Neither carries a licence fee.
What is the difference between fingerprintjs and hermes-browser-extension?
fingerprintjs is written in TypeScript and hermes-browser-extension 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, fingerprintjs or hermes-browser-extension?
Choose fingerprintjs if you want the larger community (28,684 stars) or its MIT licence terms. Choose hermes-browser-extension if its feature set, stack or MIT licence fits better. Both are self-hostable.