Bruno
Open-source, offline-only API client that stores collections as plain text files in a folder
Free · Open sourceLatest versionMacWindows
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About Bruno
Bruno is an open-source IDE for exploring and testing APIs. It stores your collections directly in a folder on your filesystem, saving each API request in a plain text markup language called Bru.
Because collections are ordinary files, you can use Git or any version control system of your choice to collaborate on them. Bruno is offline-only, and the project says it has no plans to add cloud sync, so your data stays on your device. It suits developers who want an API client that fits into their existing repositories.
Highlights
- Collections stored as plain files in a folder
- Requests saved in the Bru markup language
- Collaboration through Git or other version control
- Offline-only design with no cloud sync
- Available for Mac, Windows and Linux
Description adapted from the project README.
- Version
- 4.2.1
- Updated
- Sep 30, 2026
- Size
- 124 MB to 165 MB
- License
- MIT License
Open source details
- Source code
- Exact source for v4.2.1
- Released
- Sep 30, 2026
- GitHub stars
- 47.6K
- Website
- usebruno.com
Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.
License
PermissiveMIT License
Use, change and share it freely, including in closed source apps, as long as the copyright notice stays.
Read the full licenseHow this app was checked
AppsXi checks every version before it is listed.
Mac
Signed by Anoop MD (W7LPPWA48L)
Apple Developer ID team W7LPPWA48L
Notarized by Apple
Hardened Runtime on
File matches the hash GitHub published
SHA-256 357eabcc8c422a5d62bd64f5c4075a74dd6b72c40135141a521d54a170b0778d
No malware found
ClamAV 1.5.4 on Oct 13, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
Updates itself from the maintainer's own feed
electron-updater (github). AppsXi checks each new version too.
2 technical notes
- allow-unsigned-executable-memory (allow-jit is safer)
- Electron fuses not hardened: RunAsNode on, EnableNodeOptionsEnvironmentVariable on, EnableNodeCliInspectArguments on, EnableEmbeddedAsarIntegrityValidation off, OnlyLoadAppFromAsar off
Windows
Signature not verified
Certificate from DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US
Signature is timestamped
5 of 6 bundled files are unsigned
File matches the hash GitHub published
SHA-256 9c5d62616298b977fd73ff765dcf04b4b80c2916db5047e7c895ccdbabbf9d9b
No malware found
ClamAV 1.5.4 on Oct 13, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
1 technical note
- 5 of 6 bundled executables or libraries are unsigned
Versions
4.2.1checked
Checked Oct 13, 2026 · Mac and Windows
DMG · 159 MB, DMG · 165 MB, MSI · 124 MB
Questions about Bruno
Is Bruno free?
Yes. Bruno is free and open source under the MIT License. AppsXi lists the maintainers' official release and does not charge for it.
Is Bruno safe to download?
AppsXi downloads every version of Bruno from the maintainers' official GitHub release and checks it before it is listed. For version 4.2.1 (checked Oct 13, 2026), the Mac download is signed by its developer and notarized by Apple, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.
Does Bruno run on Apple silicon Macs?
Yes. Bruno has a native Apple silicon build, and it runs on Intel Macs too.
What does Bruno need to run?
Bruno needs macOS Big Sur (11) or later.
Who makes Bruno?
Bruno is an open source project by Bruno Software Inc on GitHub (usebruno/bruno). Help and bug reports go to its maintainers there.
Reviews
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