privacy-first, open-source and self-hosted CAPTCHA alternative with PoW and instrumentation challenges.
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Updated
Oct 9, 2026 - JavaScript
privacy-first, open-source and self-hosted CAPTCHA alternative with PoW and instrumentation challenges.
GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.
tirreno is an open-source framework for building sovereign security, compliance and fraud prevention applications. Detect account takeovers, cyberfraud and business logic abuse inside your product.
A simple solution for WordPress comment spam.
Open-source, frictionless CAPTCHA and bot defense. A privacy-focused alternative to reCAPTCHA and hCaptcha.
A Discord Bot that allows you to protect your Discord server with captcha, anti profanity, anti nudity image, anti spam, account age required, logs...
Google ReCAPTCHA v3 for Symfony
„... another popular solution to fight spam is Antispam Bee“ – Matt Mullenweg, Q&A WordCamp Europe 2014
An forensics tool to help aid in the investigation of spoofed emails based off the email headers.
A Telegram bot helping you process private messages.
Using word vectors to classify spam messages
A Hugo theme component to cloak email adresses
Gojo Satoru is an anime themed group management bot built with python and pyrogram with anti-spam feature
Dead simple bayesian anti-spam classifier written in Python.
Anti Spam/NSFW Telegram Bot Written In Python With Pyrogram.
Anti-Spam bot for Discord
PHP spam protection. CAPTCHA-free and reCAPTCHA alternative. Powered by background scoring without challenging website visitors.
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