GitHub guide catalogs 39 CAPTCHA types and how each one breaks
A field guide to CAPTCHA types and how they break
FuckCaptcha is an open, MIT-licensed reference covering 39 CAPTCHA systems, from text-based puzzles and reCAPTCHA v2/v3 to Cloudflare Turnstile, hCaptcha, GeeTest, Arkose Labs, DataDome, and Kasada. Each entry documents identification signals, free and open-source bypass approaches, and paid alternatives, with a five-level difficulty scale and a searchable web version. The project frames itself as education and authorized research, not evading protections without permission.
Bring a changing landscape of CAPTCHA systems into one approachable, maintained reference.
- rwmj
I've never seen reCaptcha v3 (or at least, not that I'm aware of), is that used commonly?
Also they don't cover the QR code that Google is sometimes throwing up, which of course I absolutely refuse to follow. It's clear that Google really wants to associate every desktop browser with a mobile phone number. You cannot create a Youtube account now without using a mobile phone number.
- jwr
I just use AI to solve the CAPTCHAs I'm presented with.
CAPTCHAs are so outdated, annoying, and imposing on us, users. Let's drop them already.
- dangistan202611
There is the case of the unending reCAPTCHA v2 Checkbox in a loop. It doesn't care if you solve it rightly.