开发者发布 FuckCaptcha 指南，梳理 39 种验证码及破解方式
来源标题：A field guide to CAPTCHA types and how they break
FuckCaptcha 是一份记录 39 种 CAPTCHA 类型及其破解方式的图文指南，由开发者发布在 Hacker News 的 Show HN 板块。内容按验证码类型逐项说明其机制与对应的绕过思路。
以下正文同步自 Hacker News，版权归原站所有，已转换为易读排版。
FuckCaptcha is an open reference for understanding CAPTCHA types, their context and the approaches documented around them. It is intended for education and authorized research, not for evading protections on services without permission.
Project Goal
How to Use the Guide
CAPTCHA Identification
Difficulty Scale
Project Structure
Useful Links
Project Goal
Bring a changing landscape of CAPTCHA systems into one approachable, maintained reference. The project aims to make the material easier to navigate, compare and cite while keeping responsible, authorized use explicit.
Browse or search the library for the CAPTCHA type you want to understand.
Read its overview and compare the documented approaches, references and limitations.
Keep testing within an environment where you have permission, and respect applicable terms and privacy.
The project brings together a practical, maintainable reference for researchers, developers and curious readers: identify common CAPTCHA families and their context, compare documented tools and approaches with their trade-offs, and stay responsible by prioritizing authorized research, privacy and transparent sourcing.
Choose a CAPTCHA below to open its guide, review the challenge category and see the references and options documented for it.
Difficulty labels are editorial estimates for navigating the guide, not guarantees of how a challenge will behave in a particular context.
The five labels are 1 — Low, 2 — Below average, 3 — Medium, 4 — High and 5 — Very high.
The docs/captchas/ directory contains individual reference pages; docs/solvers.md indexes documented tools and services; docs/resources.md collects further reading; assets/images/captchas/ stores catalog illustrations; and assets/brand/ contains the logo and banner artwork.
Solver and service index - A directory of documented options.
Research resources - Further reading and references.
Contributing
Contributions are welcome! Please see CONTRIBUTING.md for details.
This repository is provided for educational and authorized research purposes. Respect applicable law, privacy and the terms of the services you use. The authors are not responsible for misuse of this material.
If this project was useful to you, give it a star! ⭐
正文由 探How 从来源站点 RSS 同步，内容未经改写；遇到排版缺失或需要图片、视频时请以原文为准。