Kong Gateway vs NGINX Unit
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
NGINX Unit
Dynamic application server and reverse proxy
| Feature | Kong Gateway | NGINX Unit |
|---|---|---|
| Category | Reverse Proxy & Gateways | Reverse Proxy & Gateways |
| License | Apache-2.0 | Apache-2.0 |
| Language | Lua | C |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 256 MB |
| Deployment | docker, kubernetes, helm | docker, binary |
| GitHub stars | ★ 43,947 | ★ 5,551 |
| First released | 2015 | 2017 |
| Replaces | AWS API Gateway, Apigee | Passenger, uWSGI |
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 NGINX Unit if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Mature project with 5.6k GitHub stars
- Written in C
Frequently asked questions
Is Kong Gateway or NGINX Unit better?
Neither is universally better. Kong Gateway has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Kong Gateway and NGINX Unit free and open-source?
Yes. Kong Gateway is licensed under Apache-2.0 and NGINX Unit under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Kong Gateway and NGINX Unit with Docker?
Kong Gateway: yes. NGINX Unit: yes.