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Awesome Captcha – Massive Collection of Resources

Curated list of awesome captcha libraries and captcha crack tools.

CAPTCHA is a type of challenge–response test used in computing to determine whether or not the user is human.

Contents

Libraries

Generation

  • dchest/captcha – Go package captcha implements generation and verification of image and audio CAPTCHAs.
  • lepture/captcha – A captcha library that generates audio and image CAPTCHAs.
  • lemonce/svg-captcha – Generate svg captcha in Node.js.
  • DoubleSpout/ccap – Node.js generate captcha using c++ library CImg without install any other lib or software.
  • contra/captchagen – Captcha generation for Node.js.
  • jineshfrancs/CaptchaImageView – Custom ImageView to generate captcha image.
  • mcxtzhang/SwipeCaptcha – Swipe captcha of Android platform.
  • mojocn/base64Captcha – Golang base64-captcha supports digits, numbers,alphabet, arithmetic, audio and digit-alphabet captcha.
  • koto-bank/kocaptcha – A simple captcha service with a single API endpoint, written in Rust.
  • Captcheck – Lightweight, self-hostable CAPTCHA service written in PHP 7 and MySQL. Uses a selection of icons from Font-Awesome. Text-only accessibility mode and support for keyboard-only operation.
  • Securimage – Open-source free PHP Captcha script.
  • Lokno/click-captcha – A visual, click-based CAPTCHA for human authentication.
  • ArgoZhang/SliderCaptcha – Slider captcha supporting mobile.

Crack

General

Chinese

Tools

  • Tesseract – Tesseract Open Source OCR Engine.
  • MotionCAPTCHA – MotionCAPTCHA jQuery Plugin – Stop Spam, Draw Shapes.
  • Negative-captcha – A plugin to make the process of creating a negative captcha in Rails much less painful.
  • Django-simple-captcha – An extremely simple, yet highly customizable Django application to add captcha images to any Django form.
  • Securimage – PHP CAPTCHA Script.
  • Captcha_solver – Univeral API to captcha solving services.

Other

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