head to head · open source
Bruno vs azure-rest-api-specs
Bruno has 47,027 GitHub stars, 2,890 forks, 1,831 open issues and last shipped yesterday. azure-rest-api-specs has 3,093 stars, 5,958 forks, 3,379 open issues and last shipped today. Bruno leads on adoption by 1,420% (47,027 vs 3,093 stars). Bruno is written in JavaScript under MIT; azure-rest-api-specs is written in TypeSpec under MIT. Bruno has attracted 6% as many forks as stars, azure-rest-api-specs 193%. azure-rest-api-specs was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (openapi), 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 | azure-rest-api-specs | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 3.1K |
| License | MIT | MIT |
| Written in | JavaScript | TypeSpec |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 2.9K | ⑂ 6.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Bruno if
- You weight community size — 47K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick azure-rest-api-specs if
- You want the azure-rest-api-specs feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeSpec
- You evaluated both and azure-rest-api-specs fits your workflow better
About Bruno
Bruno is a lightweight, open source API client and IDE for exploring and testing APIs, built for developers and teams who want their request collections stored as plain text in a folder on their own filesystem rather than in a vendor's cloud.
read the full Bruno overview →
About azure-rest-api-specs
Azure REST API Specifications Description This repository is the canonical source for REST API specifications for Microsoft Azure. You can learn more about it here. Getting started If you're a Microsoft employee looking for information about all of the repositories and steps for Azure SDK Libraries Releases, go to the aka.ms/azsdk/join. External Contributors can read Getting Started with OpenAPI Specifications and Getting Started with TypeSpec Specifications. Directory Structure See aka.ms/azsdk/spec dirs. Examples These examples provide a starting point for how a library should be structured, as well as the expe…
read the full azure-rest-api-specs overview →
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Frequently asked questions
Is Bruno or azure-rest-api-specs more popular?
Bruno has 47,027 GitHub stars and azure-rest-api-specs has 3,093. Bruno has the larger community by that measure.
Are Bruno and azure-rest-api-specs free?
Both are open source. Bruno is licensed under MIT and azure-rest-api-specs under MIT. Neither carries a licence fee.
What is the difference between Bruno and azure-rest-api-specs?
Bruno is written in JavaScript and azure-rest-api-specs in TypeSpec. 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 azure-rest-api-specs?
Choose Bruno if you want the larger community (47,027 stars) or its MIT licence terms. Choose azure-rest-api-specs if its feature set, stack or MIT licence fits better. Both are self-hostable.