Envoy 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 Envoy with
choose an app… Caddy Traefik Pi-hole acme.sh mitmproxy Kong Gateway AdGuard Home NPS Nginx Proxy Manager Nginx Authelia Pingora authentik SafeLine Pangolin Anubis Ingress-NGINX DDNS-Go Apache APISIX Shadowsocks-libev flaresolverr LibreSpeed OAuth2 Proxy CrowdSec OpenResty Tengine YARP Fabio sslh Apache HTTP Server relayd Sozu Skipper 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 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 Envoy Istio Category Reverse Proxy & Gateways Reverse Proxy & Gateways License Apache-2.0 Apache-2.0 Language C++ Go Setup difficulty Hard Hard Min. RAM 512 MB 1,024 MB Deployment docker, kubernetes, binary kubernetes, helm GitHub stars ★ 28,735 ★ 38,338 First released 2016 2017 Replaces Nginx, HAProxy AWS App Mesh
Why pick each one
Choose Envoy if… Released under the Apache-2.0 license First-class Docker support for quick deployment Kubernetes-ready with Helm charts available Mature project with 28.7k GitHub stars Envoy details Choose Istio if… Comprehensive feature set Large ecosystem Istio details
Frequently asked questions Is Envoy 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 Envoy and Istio free and open-source? Yes. Envoy is licensed under Apache-2.0 and Istio under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Envoy and Istio with Docker? Envoy: yes. Istio: check the project docs for container support.