authentik 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?
FeatureauthentikIstio
CategoryReverse Proxy & GatewaysReverse Proxy & Gateways
LicenseMITApache-2.0
LanguagePythonGo
Setup difficultyMediumHard
Min. RAM1,024 MB1,024 MB
Deploymentdocker, kubernetes, helmkubernetes, helm
GitHub stars★ 23,666★ 38,338
First released20202017
ReplacesOkta, Auth0AWS App Mesh

Why pick each one

Choose authentik if…

  • Released under the MIT license
  • First-class Docker support for quick deployment
  • Kubernetes-ready with Helm charts available
  • Mature project with 23.7k GitHub stars
authentik details

Choose Istio if…

  • Comprehensive feature set
  • Large ecosystem
Istio details

Frequently asked questions

Is authentik or Istio better?

Neither is universally better. Istio has the larger community, while authentik is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are authentik and Istio free and open-source?

Yes. authentik is licensed under MIT and Istio under Apache-2.0. Both can be self-hosted at no software cost.

Can I run authentik and Istio with Docker?

authentik: yes. Istio: check the project docs for container support.

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