Production-ready Caddy HTTP middleware module for ALTCHA captcha verification. Protects web applications from automated abuse using cryptographic proof-of-work challenges.
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Updated
Jan 22, 2026 - Go
Production-ready Caddy HTTP middleware module for ALTCHA captcha verification. Protects web applications from automated abuse using cryptographic proof-of-work challenges.
A lightweight Python CAPTCHA generator using random character selection. Generates alphanumeric CAPTCHAs with special characters for basic security implementations.
A Python module for generating animated CAPTCHAs using OpenCV.
Full-stack comments with nested replies, file uploads, and CAPTCHA protection (ASP.NET Core, React, PostgreSQL, Docker).
Captcha Generator is a simple tool for generating captchas. It returns a random string of characters that can be used as a captcha.
A secure and reusable CAPTCHA service built with Java Servlets to generate and validate CAPTCHA images for any web application.
Captcha Generator is a Python file that generates image with a simple Tkinter GUI. It displays image CAPTCHAs directly and saves image CAPTCHA files locally for later use, providing an effective solution for bot protection and user verification.
Modern CAPTCHA-like challenges for users
Este proyecto muestra un captcha simple hecho con Python y PySide6. Genera un código aleatorio y el usuario debe escribirlo para validarlo. También permite volver a generar el código.
A decentralized captcha for human verification on DApps and other web3 platforms through user wallet
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