Amazon SNS message validation for PHP
Passbolt Community Edition (CE) API
Anti Spam SMTP Gateway
Tools to build a full-featured administrative interface
Security Assessment Data Management and Analysis Tool
Free Static Code Analysis Tool for PHP Applications
SES brings back the uncrackable onetime pad, with a digital twist.
ASP or PHP Captcha, completly configurable, with prevalidation
PHP Webinterface for openssl to manage own CA very very simple