head to head · open source
openapi-generator vs hurl
openapi-generator has 26,846 GitHub stars, 7,748 forks, 5,819 open issues and last shipped yesterday. hurl has 19,296 stars, 752 forks, 200 open issues and last shipped yesterday. openapi-generator leads on adoption by 39% (26,846 vs 19,296 stars). openapi-generator is written in Java under Apache-2.0; hurl is written in Rust under Apache-2.0. openapi-generator has attracted 29% as many forks as stars, hurl 4%. hurl 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 | hurl | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 19K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Rust |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 7.7K | ⑂ 752 |
| 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 hurl if
- You want the hurl feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and hurl fits your workflow better
About openapi-generator
OpenAPI Generator Master ( 7.27.0 ): :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 hurl
What's Hurl? Hurl is a command line tool that runs HTTP requests defined in a simple plain text format . It can chain requests, capture values and evaluate queries on headers and body response. Hurl is very versatile: it can be used for both fetching data and testing HTTP sessions. Hurl makes it easy to work with HTML content, REST / SOAP / GraphQL APIs, or any other XML / JSON based APIs. Chaining multiple requests is easy: Also an HTTP Test Tool Hurl can run HTTP requests but can also be used to test HTTP responses . Different types of queries and predicates are supported, from [XPath] and [JSONPath] on body…
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Frequently asked questions
Is openapi-generator or hurl more popular?
openapi-generator has 26,846 GitHub stars and hurl has 19,296. openapi-generator has the larger community by that measure.
Are openapi-generator and hurl free?
Both are open source. openapi-generator is licensed under Apache-2.0 and hurl under Apache-2.0. Neither carries a licence fee.
What is the difference between openapi-generator and hurl?
openapi-generator is written in Java and hurl in Rust. 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 hurl?
Choose openapi-generator if you want the larger community (26,846 stars) or its Apache-2.0 licence terms. Choose hurl if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.