acme.sh vs Caddy
A side-by-side comparison of two self-hosted reverse proxy & gateways options
— licensing, setup difficulty, resource needs, and what each one
replaces.
Not the right match-up?
Compare acme.sh with
choose an app… Traefik Pi-hole mitmproxy Kong Gateway Istio AdGuard Home NPS Nginx Proxy Manager Nginx Envoy Authelia Pingora authentik SafeLine Pangolin Anubis Ingress-NGINX DDNS-Go Apache APISIX Shadowsocks-libev flaresolverr LibreSpeed OAuth2 Proxy CrowdSec CoreDNS cert-manager OpenResty dnscrypt-proxy Tengine MyIP Linkerd FrankenPHP SmartDNS imgproxy Tyk BunkerWeb lego YARP Technitium DNS Server ExternalDNS Tinyauth iodine Fabio Blocky HAProxy dae Tinyproxy NGINX Unit 3proxy Zoraxy WireGuard UI sslh Tor Browser Pomerium go-shadowsocks2 sish Caddy Docker Proxy Emissary-ingress Apache HTTP Server Varnish Cache Kuma Contour relayd go-doxy Coraza WAF Speed Test by OpenSpeedTest™ mosdns Sozu SWAG Skipper Squid Algernon Canary Tokens MySpeed Gateway API Sablier KrakenD Angie Syslog-ng River Static Web Server beelzebub Traefik Mesh gobetween Apache Traffic Server Maza ad blocking frp-panel Adguard Home Sync Træfik Hub Note Caddy-L4 UUSEC WAF OpenResty Manager Pingap Ehco SimpleTorrent g3proxy Unifi-controller ctrld HAProxy Kubernetes Ingress Gravitee API Management HAProxy Data Plane API Chromium Duck DNS Traefik Geoblock Cloudflare DDNS Privoxy Wakupator socks5-proxy-server Pound gandi-livedns Urbit Holesail Switchboard Adguard Firefox Lighttpd Remmina Tor Snowflake Proxy Twingate Vinyl Cache
Compare Caddy with
choose an app… Traefik Pi-hole mitmproxy Kong Gateway Istio AdGuard Home NPS Nginx Proxy Manager Nginx Envoy Authelia Pingora authentik SafeLine Pangolin Anubis Ingress-NGINX DDNS-Go Apache APISIX Shadowsocks-libev flaresolverr LibreSpeed OAuth2 Proxy CrowdSec CoreDNS cert-manager OpenResty dnscrypt-proxy Tengine MyIP Linkerd FrankenPHP SmartDNS imgproxy Tyk BunkerWeb lego YARP Technitium DNS Server ExternalDNS Tinyauth iodine Fabio Blocky HAProxy dae Tinyproxy NGINX Unit 3proxy Zoraxy WireGuard UI sslh Tor Browser Pomerium go-shadowsocks2 sish Caddy Docker Proxy Emissary-ingress Apache HTTP Server Varnish Cache Kuma Contour relayd go-doxy Coraza WAF Speed Test by OpenSpeedTest™ mosdns Sozu SWAG Skipper Squid Algernon Canary Tokens MySpeed Gateway API Sablier KrakenD Angie Syslog-ng River Static Web Server beelzebub Traefik Mesh gobetween Apache Traffic Server Maza ad blocking frp-panel Adguard Home Sync Træfik Hub Note Caddy-L4 UUSEC WAF OpenResty Manager Pingap Ehco SimpleTorrent g3proxy Unifi-controller ctrld HAProxy Kubernetes Ingress Gravitee API Management HAProxy Data Plane API Chromium Duck DNS Traefik Geoblock Cloudflare DDNS Privoxy Wakupator socks5-proxy-server Pound gandi-livedns Urbit Holesail Switchboard Adguard Firefox Lighttpd Remmina Tor Snowflake Proxy Twingate Vinyl Cache
Feature acme.sh Caddy Category Reverse Proxy & Gateways Reverse Proxy & Gateways License GPL-3.0 Apache-2.0 Language Shell Go Setup difficulty Easy Easy Min. RAM 32 MB 64 MB Deployment binary, source docker, binary, bare-metal GitHub stars ★ 47,426 ★ 74,748 First released 2016 2015 Replaces Certbot Nginx, Apache
Why pick each one
Choose acme.sh if… Released under the GPL-3.0 license Easy to set up — beginner-friendly Mature project with 47.4k GitHub stars Written in Shell acme.sh details
Frequently asked questions Is acme.sh or Caddy better? Neither is universally better. Caddy has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are acme.sh and Caddy free and open-source? Yes. acme.sh is licensed under GPL-3.0 and Caddy under Apache-2.0. Both can be self-hosted at no software cost.
Can I run acme.sh and Caddy with Docker? acme.sh: check the project docs for container support. Caddy: yes.