SafeLine is a self-hosted Web Application Firewall (WAF) designed to protect web applications from various attacks and exploits. It filters and monitors HTTP traffic between the web application and the Internet, safeguarding against SQL injection, XSS, code injection, and other threats. SafeLine operates as a reverse-proxy, shielding the server from exposure by filtering out malicious traffic before it reaches the server. Its core capabilities include defenses for web attacks, proactive bot abused defense, HTML & JS code encryption, IP-based rate limiting, and web access control lists. The WAF also features a live demo and offers several key features such as blocking web attacks, rate limiting to defend against DoS attacks, anti-bot challenges, authentication challenges, and dynamic protection through code encryption. SafeLine can be downloaded to enhance the security of web applications.