head to head · open source
Bruno vs light-4j
Bruno has 47,992 GitHub stars, 3,068 forks, 1,831 open issues and last shipped yesterday. light-4j has 3,676 stars, 623 forks, 15 open issues and last shipped yesterday. Bruno leads on adoption by 1,206% (47,992 vs 3,676 stars). Bruno is written in JavaScript under MIT; light-4j is written in Java under Apache-2.0. Bruno has attracted 6% as many forks as stars, light-4j 17%. Bruno 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
| Bruno | light-4j | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 3.7K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.1K | ⑂ 623 |
| 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 light-4j if
- You want the light-4j 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 light-4j 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 light-4j
A fast, lightweight and cloud native microservices framework. Stack Overflow Google Group Gitter Chat Subreddit Youtube Channel Documentation Contribution Guide Why call it Light 4J Light means lightweight, lightning fast and shedding light on how to program with modern Java SE for cloud native deployment. Why am I doing it I had been working on the Java EE platforms since early 2000 and suffered the performance and productivity issues. In 2014, I realized that the IT industry was moving from Monolithic to Microservices and from on premise data centers to the public clouds. To reduce the production cost for my…
read the full light-4j overview →
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Frequently asked questions
Is Bruno or light-4j more popular?
Bruno has 47,992 GitHub stars and light-4j has 3,676. Bruno has the larger community by that measure.
Are Bruno and light-4j free?
Both are open source. Bruno is licensed under MIT and light-4j under Apache-2.0. Neither carries a licence fee.
What is the difference between Bruno and light-4j?
Bruno is written in JavaScript and light-4j 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 light-4j?
Choose Bruno if you want the larger community (47,992 stars) or its MIT licence terms. Choose light-4j if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.