relayd vs Istio
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 relayd with
choose an app… Caddy Traefik Pi-hole acme.sh mitmproxy Kong Gateway AdGuard Home NPS Nginx Proxy Manager Envoy Fabio HAProxy sslh Sozu River gobetween Træfik Hub Note Caddy-L4 Pound
Compare Istio with
choose an app… Caddy Traefik Pi-hole acme.sh mitmproxy Kong Gateway 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 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 relayd Istio Category Reverse Proxy & Gateways Reverse Proxy & Gateways License ISC Apache-2.0 Language C Go Setup difficulty Hard Hard Min. RAM 32 MB 1,024 MB Deployment bare-metal, source kubernetes, helm GitHub stars ★ 3,851 ★ 38,338 First released 2006 2017 Replaces HAProxy, F5 BIG-IP AWS App Mesh
Why pick each one
Choose relayd if… Tightly integrated with OpenBSD Very lightweight relayd details Choose Istio if… Comprehensive feature set Large ecosystem Istio details
Frequently asked questions Is relayd or Istio better? Neither is universally better. Istio has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are relayd and Istio free and open-source? Yes. relayd is licensed under ISC and Istio under Apache-2.0. Both can be self-hosted at no software cost.
Can I run relayd and Istio with Docker? relayd: check the project docs for container support. Istio: check the project docs for container support.