head to head · open source
Bruno vs springdoc-openapi
Bruno has 47,992 GitHub stars, 3,068 forks, 1,831 open issues and last shipped yesterday. springdoc-openapi has 3,744 stars, 611 forks, 14 open issues and last shipped 10 days ago. Bruno leads on adoption by 1,182% (47,992 vs 3,744 stars). Bruno is written in JavaScript under MIT; springdoc-openapi is written in Java under Apache-2.0. Bruno has attracted 6% as many forks as stars, springdoc-openapi 16%. Bruno was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (openapi, openapi3, rest-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
| Bruno | springdoc-openapi | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 3.7K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Java |
| Last push | 2026-11-02 | 2026-10-24 |
| Forks | ⑂ 3.1K | ⑂ 611 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Bruno if
- You weight community size — 48K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick springdoc-openapi if
- You want the springdoc-openapi feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and springdoc-openapi fits your workflow better
About Bruno
Bruno Opensource IDE for exploring and testing APIs. English Українська Русский Türkçe Deutsch Français Português (BR) 한국어 বাংলা Español Italiano Română Polski 简体中文 正體中文 العربية 日本語 ქართული Nederlands فارسی Bruno is a new and innovative API client, aimed at revolutionizing the status quo represented by Postman and similar tools out there. Bruno stores your collections directly in a folder on your filesystem. We use a plain text markup language, Bru, to save information about API requests. You can use Git or any version control of your choice to collaborate over your API collections. Bruno is offline only. There…
read the full Bruno overview →
About springdoc-openapi
springdoc openapi is on Open Collective. If you ❤️ this project consider becoming a sponsor. This project is sponsored by Table of Contents Full documentation Security contact information Versioning Introduction Getting Started Library for springdoc openapi integration with spring boot and swagger ui Spring boot with OpenAPI Demo applications. Source Code for Demo Applications. Demo Spring Boot 4 Web MVC with OpenAPI 3. Demo Spring Boot 4 WebFlux with OpenAPI 3. Demo Spring Boot 4 WebFlux with Functional endpoints OpenAPI 3. Demo Spring Boot 4 and Spring Hateoas with OpenAPI 3. Integration of the library in a…
read the full springdoc-openapi overview →
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Frequently asked questions
Is Bruno or springdoc-openapi more popular?
Bruno has 47,992 GitHub stars and springdoc-openapi has 3,744. Bruno has the larger community by that measure.
Are Bruno and springdoc-openapi free?
Both are open source. Bruno is licensed under MIT and springdoc-openapi under Apache-2.0. Neither carries a licence fee.
What is the difference between Bruno and springdoc-openapi?
Bruno is written in JavaScript and springdoc-openapi in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Bruno or springdoc-openapi?
Choose Bruno if you want the larger community (47,992 stars) or its MIT licence terms. Choose springdoc-openapi if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.