head to head · open source
Ladybird vs fingerprintjs
Ladybird has 66,807 GitHub stars, 3,194 forks, 535 open issues and last shipped yesterday. fingerprintjs has 28,675 stars, 2,641 forks, 19 open issues and last shipped 3 days ago. Ladybird leads on adoption by 133% (66,807 vs 28,675 stars). Ladybird is written in C++ under BSD-2-Clause; fingerprintjs is written in TypeScript under MIT. Ladybird has attracted 5% as many forks as stars, fingerprintjs 9%. Ladybird 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
| Ladybird | fingerprintjs | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 29K |
| License | BSD-2-Clause | MIT |
| Written in | C++ | TypeScript |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 3.2K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Ladybird if
- You weight community size — 67K stars and counting
- You want the BSD-2-Clause 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 Ladybird
Ladybird Ladybird is a truly independent web browser, using a novel engine based on web standards. [!IMPORTANT] Ladybird is in a pre alpha state, and only suitable for use by developers Features We aim to build a complete, usable browser for the modern web. Ladybird uses a multi process architecture with a main UI process, several WebContent renderer processes, an ImageDecoder process, and a RequestServer process. Image decoding and network connections are done out of process to be more robust against malicious content. Each tab has its own renderer process, which is sandboxed from the rest of the system. At the…
read the full Ladybird 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 Ladybird or fingerprintjs more popular?
Ladybird has 66,807 GitHub stars and fingerprintjs has 28,675. Ladybird has the larger community by that measure.
Are Ladybird and fingerprintjs free?
Both are open source. Ladybird is licensed under BSD-2-Clause and fingerprintjs under MIT. Neither carries a licence fee.
What is the difference between Ladybird and fingerprintjs?
Ladybird 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, Ladybird or fingerprintjs?
Choose Ladybird if you want the larger community (66,807 stars) or its BSD-2-Clause licence terms. Choose fingerprintjs if its feature set, stack or MIT licence fits better. Both are self-hostable.