Istio vs lego
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?
Istio
Full-featured service mesh for traffic and security control
VS
lego
Let's Encrypt and ACME client written in Go
| Feature | Istio | lego |
|---|---|---|
| Category | Reverse Proxy & Gateways | Reverse Proxy & Gateways |
| License | Apache-2.0 | MIT |
| Language | Go | Go |
| Setup difficulty | Hard | Easy |
| Min. RAM | 1,024 MB | 64 MB |
| Deployment | kubernetes, helm | binary, docker |
| GitHub stars | ★ 38,338 | ★ 9,789 |
| First released | 2017 | 2015 |
| Replaces | AWS App Mesh | Certbot |
Why pick each one
Choose lego if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Mature project with 9.8k GitHub stars
Frequently asked questions
Is Istio or lego better?
Neither is universally better. Istio has the larger community, while lego is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Istio and lego free and open-source?
Yes. Istio is licensed under Apache-2.0 and lego under MIT. Both can be self-hosted at no software cost.
Can I run Istio and lego with Docker?
Istio: check the project docs for container support. lego: yes.