Free, open-source and self-hosted CAPTCHA alternative to reCAPTCHA. Privacy-first and powered by proof-of-work and instrumentation challenges.
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Aug 29, 2026 - JavaScript
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antispam
Here are 320 public repositories matching this topic...
GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.
security privacy recaptcha captcha svelte wcag spam-prevention spam-protection anti-bot antispam spam-detection ddos-mitigation proof-of-work captcha-alternative ddos-protection anti-abuse hcaptcha spam-api
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Aug 19, 2026 - TypeScript
tirreno is a security framework. Event tracking, threat detection, and risk scoring for any product.
intelligence log-analysis php-scripts banking audit-logs user-monitoring fraud-prevention antispam cyber-security bot-detection application-monitoring fraud-detection php-project security-framework fraud bot-management runtime-security security-analytics audit-trails cybersecurity-projects
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Aug 14, 2026 - PHP
A simple solution for WordPress comment spam.
wordpress blacklist blocklist antispam spam-filtering wordpress-comments comment-blacklist comment-blocklist
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Aug 31, 2026
Open-source, frictionless CAPTCHA and bot defense. A privacy-focused alternative to reCAPTCHA and hCaptcha.
security spam privacy recaptcha captcha spam-protection antispam spam-detection ddos-mitigation bot-detection proof-of-work captcha-alternative self-host ddos-protection invisible-captcha human-verification hcaptcha procaptcha frictionless-captcha bot-defense
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Aug 31, 2026 - TypeScript
A Discord Bot that allows you to protect your Discord server with captcha, anti profanity, anti nudity image, anti spam, account age required, logs...
python captcha discord discord-bot raid anti-spam discord-py captcha-image antispam captcha-generator discord-raid discord-captcha discord-logger discord-raid-protect raid-protect raidprotect raid-protection
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Nov 17, 2023 - Python
Google ReCAPTCHA v3 for Symfony
recaptcha symfony-bundle google-recaptcha anti-spam antispam no-captcha invisible-recaptcha invisible-captcha recaptcha-v3 googlerecaptcha google-recaptcha-v3 recaptcha-bundle symfony-recaptcha symfony-google-recaptcha recaptcha-v3-symfony
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Dec 8, 2025 - PHP
„... another popular solution to fight spam is Antispam Bee“ – Matt Mullenweg, Q&A WordCamp Europe 2014
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Aug 31, 2026 - PHP
An forensics tool to help aid in the investigation of spoofed emails based off the email headers.
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Jun 25, 2021 - Python
A Telegram bot helping you process private messages.
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Dec 8, 2022 - C#
Using word vectors to classify spam messages
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Dec 18, 2017 - TypeScript
A Hugo theme component to cloak email adresses
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Sep 20, 2024 - HTML
Gojo Satoru is an anime themed group management bot built with python and pyrogram with anti-spam feature
python bot open-source telegram telegram-bot anti-spam python-bot antispam tgbot tg-bot pyrogram anime-theme pyrogram-bot group-management-bot gojo-bots
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Jul 13, 2026 - Python
Dead simple bayesian anti-spam classifier written in Python.
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Mar 21, 2018 - Python
Anti Spam/NSFW Telegram Bot Written In Python With Pyrogram.
python heroku telegram telegram-bot antispam spam-detection tgbot pyrogram antispambot nsfw-classifier nsfw-detection pyrogram-bot spamprotection antinsfw spamprotectionbot
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Jul 28, 2024 - Python
Anti-Spam bot for Discord
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Dec 15, 2024 - Go
PHP spam protection. CAPTCHA-free alternative
api php spam rest-api anti-spam spam-protection php-api antispam spam-detection cleantalk spam-filter spam-api form-protection
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Aug 18, 2026 - PHP
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