head to head · open source
openapi-generator vs easegress
openapi-generator has 26,745 GitHub stars, 7,674 forks, 5,751 open issues and last shipped yesterday. easegress has 5,868 stars, 498 forks, 10 open issues and last shipped 2 months ago. openapi-generator leads on adoption by 356% (26,745 vs 5,868 stars). openapi-generator is written in Java under Apache-2.0; easegress is written in Go under Apache-2.0. openapi-generator has attracted 29% as many forks as stars, easegress 8%. openapi-generator was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| openapi-generator | easegress | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 5.9K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Go |
| Last push | 2026-09-17 | 2026-07-20 |
| Forks | ⑂ 7.7K | ⑂ 498 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openapi-generator if
- You weight community size — 27K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick easegress if
- You want the easegress feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and easegress fits your workflow better
About openapi-generator
OpenAPI Generator is an Apache 2.0 licensed Java tool that generates API client libraries, server stubs, documentation, and configuration automatically from an OpenAPI Specification, and it is built for development teams that keep a machine readable API description and want generated code to stay in step with it.
read the full openapi-generator overview →
About easegress
Easegress is a Cloud Native traffic orchestration system written in Go and released under the Apache 2.0 license. It is a CNCF project hosted at easegress io/easegress, with the project homepage at megaease.com/easegress. The repository is roughly five years old, carries 5,869 stars and 498 forks, and shows a last push on 2026 07 20 with 10 open issues. Its topic list places it in the Kubernetes and cloud native ecosystem alongside api gateway, gateway, load balancer, mesh, microservice, distributed systems, and etcd.
read the full easegress overview →
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Frequently asked questions
Is openapi-generator or easegress more popular?
openapi-generator has 26,745 GitHub stars and easegress has 5,868. openapi-generator has the larger community by that measure.
Are openapi-generator and easegress free?
Both are open source. openapi-generator is licensed under Apache-2.0 and easegress under Apache-2.0. Neither carries a licence fee.
What is the difference between openapi-generator and easegress?
openapi-generator is written in Java and easegress in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, openapi-generator or easegress?
Choose openapi-generator if you want the larger community (26,745 stars) or its Apache-2.0 licence terms. Choose easegress if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.