🔑 Curated list of awesome captcha libraries and crack tools.

Custom ImageView to generate captcha image.

🛡️⚔️ Protect your web app from DDOS attack or the Dead Ping + CAPTCHA VERIFICATION in one line!

Universal python API to captcha solving services

A Discord Bot that allows you to protect your Discord server with captcha, anti profanity, anti nudity image, anti spam, account age required, logs...

A self-hosted, customizable, easy-to-implement and user-friendly captcha for PHP.

Combine Baidu Research warpctc with Caffe

[Deprecated] The reCAPTCHA Android Library provides a simple way to show a CAPTCHA as an ImageView in your Android app, helping you stop bots from abusing it. The library wraps the reCAPTCHA API.

A great tool for solving math captchas !

Generate verification images dynamically

CrowdSec is an open-source cyber security tool. This plugin blocks detected attackers or display them a captcha to check they are not bots.

Generates a captcha image for a Blazor application

可扩展java验证码工具类。支持字母，中文，数字运算；同时可配置验证码尺寸，背景色，干扰项

The best bot for collecting cryptocurrency from freebitco.in, freedoge.co.in and freenem.com 🚀🌔

🍬 Simple API wrapper for https://2captcha.com

It is a simple PHP script to generate captcha for form validation. It can be integrated in any website for captcha generation.

This repository contains the source for the IconCaptcha client-side widget.

The official PHP bouncers library for the CrowdSec LAPI

IconCaptcha is a fast, simple and user-friendly captcha. - ASP.NET MVC package

A tiny program to solve the thousand captcha image for testing the quality of the OCR. (Optical character recognition)