Spam protection for Laravel forms. Alternative to reCAPTCHA

UniForce - Universal Security plugin and Firewall for websites

Python spam bot filter. Invisible CAPTCHA alternative

Spam protection API for Perl forms.

PHP SDK for integrating with PayPal's Express Chechkout / MassPay / Web Payments Pro APIs

Anit-spam extension for Yii framework.

Various perl tools.

Addon to sale CleanTalk service for hosting customers.

Anti-spam plugin for Joomla 1.5.

🌩️⛈️⚡🛡️✅ Anti DDOS | Bash Script Project ✅🛡️⚡⛈️🌩️

Spam bot protection for Yii2 forms. CleanTalk API

Antispam MOD for phpBB3.

Typo3 anti-spam extension.

Anti-spam mod for DataLife Engine (DLE)

Ruby spam protection for forms. Alternative to reCAPTCHA. No CAPTCHA. Bot filtering.

XenForo anti-spam addon.

Android app to control comments/signups/contacts/orders on a web-site via CleanTalk anti-spam app.

IPS Community Suite 4.0 (IP.Board) anti-spam extension.

Anti-spam plugin for Joomla 2.x

LUA configuration to filter any POST requests.

Magento-2 Anti-Spam module

Antispam extension for MediaWiki.

Anti-spam hook for vBulletin 5.X.

iOS app to control comments/signups/contacts/orders on a web-site via CleanTalk anti-spam app.

Anti-spam hook for vBulletin 3.X.

1C Bitrix Anti-Spam modification

Xenforo2 Anti-Spam