head to head · open source
openapi-generator vs Tyk
openapi-generator has 26,846 GitHub stars, 7,749 forks, 5,810 open issues and last shipped today. Tyk has 10,873 stars, 1,169 forks, 509 open issues and last shipped yesterday. openapi-generator leads on adoption by 147% (26,846 vs 10,873 stars). openapi-generator is written in Java under Apache-2.0; Tyk is written in Go under a custom or non-standard licence. openapi-generator has attracted 29% as many forks as stars, Tyk 11%. openapi-generator was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api), so they are genuine substitutes rather than adjacent tools.
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 | Tyk | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 11K |
| License | Apache-2.0 | Custom / other |
| Written in | Java | Go |
| Last push | 2026-11-03 | 2026-11-02 |
| Forks | ⑂ 7.7K | ⑂ 1.2K |
| 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 Tyk if
- You want the Tyk feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Go
- You evaluated both and Tyk fits your workflow better
About openapi-generator
OpenAPI Generator Master ( 7.28.0 ): :star::star::star: If you would like to contribute, please refer to guidelines and a list of open tasks. :star::star::star: :bangbang: To migrate from Swagger Codegen to OpenAPI Generator, please refer to the migration guide :bangbang: :notebook with decorative cover: For more information, please refer to the Wiki page and FAQ :notebook with decorative cover: :notebook with decorative cover: The eBook A Beginner's Guide to Code Generation for REST APIs is a good starting point for beginners :notebook with decorative cover: :warning: If the OpenAPI spec, templates or any input…
read the full openapi-generator overview →
About Tyk
Documentation Forum Blog About Tyk API Gateway Tyk Gateway is the cloud native, open source, enterprise ready API Gateway supporting REST, GraphQL, TCP and gRPC protocols. Built from the ground up, as the fastest API Gateway on the planet since 2014. Tyk Gateway is provided ‘Batteries included’, with no feature lockout. Enabling your organization to rate limit, auth, gather analytics, apply microservice patterns and more with ease. Tyk runs natively on Kubernetes , if you prefer, thanks to the Tyk Kubernetes Operator Everything you need to manage APIs. Follow the simple Get Started guide below 👇 The Enterprise…
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Frequently asked questions
Is openapi-generator or Tyk more popular?
openapi-generator has 26,846 GitHub stars and Tyk has 10,873. openapi-generator has the larger community by that measure.
Are openapi-generator and Tyk free?
Both are open source. openapi-generator is licensed under Apache-2.0, and Tyk has no licence declared in this registry. Both are free to self-host.
What is the difference between openapi-generator and Tyk?
openapi-generator is written in Java and Tyk 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 Tyk?
Choose openapi-generator if you want the larger community (26,846 stars) or its Apache-2.0 licence terms. Choose Tyk if its feature set, stack or Custom / other licence fits better. Both are self-hostable.