Open source fingerprinting projects
Every project in the registry tagged fingerprinting, ranked by real GitHub adoption.
The most advanced free and open-source browser fingerprinting library
Pydoll is a library for automating chromium-based browsers without a WebDriver, offering realistic interactions.
Python binding for curl-impersonate fork via cffi. A http client that can impersonate browser tls/ja3/http2 fingerprints.
Frequently asked questions
How many open source fingerprinting projects are there?
This registry tracks 3 projects tagged fingerprinting, with 42,061 GitHub stars between them. The most-adopted is fingerprintjs at 28,466 stars.
Are these fingerprinting projects free to use?
Yes — 3 of the 3 carry an explicit open-source licence across 1 distinct licence, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which fingerprinting project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these fingerprinting projects still maintained?
3 of the 3 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.