Libraries
8 projects
captchaA Laravel service provider for generating and validating CAPTCHA images, including math-based challenges.
CGregwar/CaptchaA PHP library for generating and validating CAPTCHA images to protect forms from bots.
captchaA lightweight pure JavaScript CAPTCHA generator for Node.js with no external dependencies.
recaptchaA PHP client library for Google's reCAPTCHA service to verify user responses and protect websites from spam.
recaptchaA Ruby gem providing helper methods for integrating Google reCAPTCHA and hCaptcha into web applications.
no-captchaA Laravel package for easy integration of Google's No CAPTCHA reCAPTCHA with validation and testing support.
captcha_solverA universal Python API for solving CAPTCHAs using multiple backend services including 2captcha, RuCaptcha, and browser automation.
Generation
14 projects
captchaA Go package for generating and verifying image and audio CAPTCHAs with built-in storage and HTTP server support.
captchaA Python library for generating audio and image CAPTCHAs with custom voice and font support.
svg-captchaGenerate SVG-based CAPTCHAs in Node.js without C++ addons, offering lightweight and customizable spam protection.
ccapA Node.js captcha generation library using C++ CImg with zero external dependencies.
captchagenA Node.js library for generating CAPTCHA images with customizable middleware and output formats.
CaptchaImageViewA custom Android ImageView that generates and displays CAPTCHA images with built-in validation.
SwipeCaptchaA customizable Android library for implementing swipe-based captcha verification with puzzle piece dragging.
base64CaptchaA flexible Go package for generating and verifying captchas as base64-encoded image or audio strings.
kocaptchaA simple CAPTCHA service with a single API endpoint that generates captchas and validates answers via MD5 hash.
click-captchaA visual CAPTCHA that authenticates humans with a single mouse click on a hidden circle in a generated image.
SliderCaptchaA slider-based CAPTCHA library for web applications that supports PC and mobile with server-side verification.
General
17 projects
captchaA Torch-based deep learning project for breaking CAPTCHA systems using CNN and RNN architectures.
CAPTCHAA TensorFlow-based convolutional neural network for recognizing four-digit CAPTCHA images.
captcha-breakA collection of CAPTCHA-breaking implementations using OpenCV, Tesseract OCR, and machine learning algorithms.
captcha_breakA deep learning project using Keras to build convolutional and recurrent neural networks for high-accuracy captcha recognition.
simple-captcha-solverA Python script that solves simple CAPTCHAs using image processing and template matching for lowercase hexadecimal letters.
SimGAN-CaptchaAn AI-powered captcha solver using SimGAN to generate synthetic training data without manual labeling.
captcha.irctcA deep learning model that reads IRCTC captchas with 98% accuracy, demonstrating their vulnerability to automated booking.
CNN_kerasA convolutional neural network for CAPTCHA recognition using Keras and PyTorch.
captcha_recognizeA TensorFlow-based image recognition system for captchas that works without image segmentation.
captcha-svm
captcha_crackerA convolutional neural network model built with Keras for recognizing captcha images generated by the Laravel Captcha library.
slide_captcha_crackerUses Canny edge detection and OpenCV to locate puzzle pieces in slide-based CAPTCHAs for automated solving.
JasonLiTW/simple-railway-captcha-solver#english-versionA CNN-based captcha solver for Taiwan Railway booking website with a training set generator that mimics captcha style and uses data augmentation.
CAPTCHA-breakingA Python-based CAPTCHA breaking solution using Keras and OpenCV, developed for a data science competition.
uncaptchaA proof-of-concept system that defeats Google's audio reCaptcha with 85% accuracy using speech recognition and browser automation.
busterA browser extension that solves difficult CAPTCHAs by completing reCAPTCHA audio challenges using speech recognition.
captcha_trainerA deep learning framework for training image classification models to solve complex captcha and OCR tasks.
Chinese
6 projects
burness/chinese_hand_write_recA collection of TensorFlow tutorials and examples covering image classification, GANs, text classification, and model deployment.
cnn_handwritten_chinese_recognitionA web application that uses a CNN model to recognize handwritten Chinese characters from an online drawing canvas.
Chinese-Character-RecognitionA TensorFlow CNN implementation for Chinese character recognition, achieving 92.5% top-1 accuracy with batch normalization.
zheyeA convolutional neural network program that identifies inverted Chinese character captchas used by Zhihu for login verification.
12306-captchaA deep learning-based solution for automatically recognizing and solving 12306 railway website captchas.
cnn_captchaA TensorFlow-based CNN solution for recognizing character-based CAPTCHAs, providing training, validation, and API modules.
Tools
6 projects
tesseractAn open-source OCR engine that converts images to text, supporting over 100 languages and multiple output formats.
MotionCAPTCHAA jQuery CAPTCHA plugin that stops spam by requiring users to draw shapes on a canvas.
Negative-captcha
Django-simple-captcha
SecurimageA PHP class for generating and validating CAPTCHA images and audio with extensive customization options.
captcha_solverA universal Python API for solving CAPTCHAs using multiple backend services including 2captcha, RuCaptcha, and browser automation.