Kong Gateway vs Sozu
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?
Kong Gateway
Cloud-native, fast, scalable API gateway
VS
Sozu
Hot-reconfigurable HTTP reverse proxy in Rust
| Feature | Kong Gateway | Sozu |
|---|---|---|
| Category | Reverse Proxy & Gateways | Reverse Proxy & Gateways |
| License | Apache-2.0 | AGPL-3.0 |
| Language | Lua | Rust |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 128 MB |
| Deployment | docker, kubernetes, helm | docker, binary |
| GitHub stars | ★ 43,947 | ★ 3,715 |
| First released | 2015 | 2016 |
| Replaces | AWS API Gateway, Apigee | HAProxy, Nginx |
Why pick each one
Choose Kong Gateway if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Kubernetes-ready with Helm charts available
- Mature project with 43.9k GitHub stars
Choose Sozu if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Active community (3.7k GitHub stars)
- Written in Rust
Frequently asked questions
Is Kong Gateway or Sozu better?
Kong Gateway is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Sozu if its specific feature set fits your needs better.
Are Kong Gateway and Sozu free and open-source?
Yes. Kong Gateway is licensed under Apache-2.0 and Sozu under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Kong Gateway and Sozu with Docker?
Kong Gateway: yes. Sozu: yes.