ctrld 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?
ctrld
Flexible DNS forwarding proxy with per-client policy
VS
Istio
Full-featured service mesh for traffic and security control
| Feature | ctrld | Istio |
|---|---|---|
| Category | Reverse Proxy & Gateways | Reverse Proxy & Gateways |
| License | MIT | Apache-2.0 |
| Language | Go | Go |
| Setup difficulty | Medium | Hard |
| Min. RAM | 64 MB | 1,024 MB |
| Deployment | binary, source | kubernetes, helm |
| GitHub stars | ★ 866 | ★ 38,338 |
| First released | 2022 | 2017 |
| Replaces | NextDNS | AWS App Mesh |
Why pick each one
Choose ctrld if…
- Released under the MIT license
- Written in Go
- Tiny footprint — runs in 64 MB RAM
Frequently asked questions
Is ctrld or Istio better?
Neither is universally better. Istio has the larger community, while ctrld is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are ctrld and Istio free and open-source?
Yes. ctrld is licensed under MIT and Istio under Apache-2.0. Both can be self-hosted at no software cost.
Can I run ctrld and Istio with Docker?
ctrld: check the project docs for container support. Istio: check the project docs for container support.