Caddy is an open-source HTTP/1-2-3 web server written in Go that automatically obtains and renews TLS certificates, eliminating manual HTTPS configuration. Developers use it as a standalone web server or reverse proxy when they need quick HTTPS setup, simple declarative configuration through Caddyfiles, or built-in support for modern HTTP protocols. It's designed to be easier to deploy than traditional servers like Nginx or Apache, particularly for applications that require secure connections out of the box.

277 open issues · last updated Jul 21, 2026