SafeLine is described as 'Docker-based, easy to use, self-hosted free web application firewall (WAF) that protects web apps by filtering and monitoring HTTP traffic between a web application and the Internet' and is a web application firewall in the security & privacy category. There are more than 10 alternatives to SafeLine for a variety of platforms, including Web-based, SaaS, Self-Hosted, Wordpress and Linux apps. The best SafeLine alternative is Cloudflare, which is free. Other great apps like SafeLine are BunkerWeb, FortiWeb, Google Cloud Armor and Sucuri.