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Bruno API Client – Best Free Offline API Testing Tool Postman Alternative for Windows, macOS & Linux

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File Information

NameBruno
Version2.13.2
File SizeWindows: ~150 MB (.exe) • macOS: ~160 MB (.dmg) • Linux: ~170 MB (.deb / .AppImage)
PlatformsWindows • macOS • Linux (Debian/Ubuntu x86_64 & Arm64, Red Hat/Fedora/SUSE x86_64 & Arm64, AppImage)
LicenseOpen Source (MIT License)
Official Repositorybruno
Official Siteusebruno

Description

Bruno is a fast, open-source API client designed to revolutionize the way developers interact with APIs. Bruno stores your API collections directly on your filesystem using a plain text markup language called Bru. This approach allows you to leverage version control systems like Git, enabling seamless collaboration and versioning of your API requests.

Bruno is built with a strong emphasis on data privacy and offline functionality. It operates entirely offline, ensuring that your data remains on your device without any cloud synchronization. This makes it an ideal choice for developers who prioritize security and control over their data.

The user interface is clean and intuitive, providing a comfortable environment for crafting and testing API requests. Whether you’re working with REST, GraphQL, or gRPC APIs, Bruno offers the tools you need to streamline your development workflow.

Features of Bruno

FeatureDescription
Git IntegrationStores API collections as plain text files, allowing full version control & collaboration using Git or other VCS.
Offline-First DesignEntirely offline; no cloud sync, ensuring data privacy & security on your local device.
Multi-Protocol SupportSupports REST, GraphQL, & gRPC APIs for versatile API development & testing.
Environment VariablesManage multiple configurations for development, staging & production environments easily.
Authentication MethodsSupports Bearer tokens, Basic Auth & other authentication schemes for secure API access.
Request ScriptingAllows pre-request & post-response scripts for automation & advanced testing scenarios.
Client CertificatesAdd & manage client certificates for secure API communication.
OpenAPI ImportQuickly import OpenAPI specifications to generate request collections and streamline workflows.
Cross-Platform CompatibilityAvailable for Windows, macOS & Linux ensuring consistent experience across devices.

Screenshots

System Requirements

PlatformMinimum Requirements
WindowsWindows 7 or later, 2 GHz CPU, 2 GB RAM, OpenGL 2.1 compatible GPU, 500 MB free disk space
macOSmacOS 10.12 or later, Intel or Apple Silicon, 2 GB RAM, 500 MB free disk space
LinuxAny modern distribution, 2 GHz CPU, 2 GB RAM, OpenGL 2.1 compatible GPU, 500 MB free disk space

How to Install Bruno : Open Source API Client??

Before starting the installation, scroll down to the Download Section to get the correct file for your platform. Bruno is lightweight, offline-only, and stores all your API collections directly on your device, keeping your data private.

Windows Installation

  1. Download the .exe file from the Download Section.
  2. Double-click the .exe file to start the installer.
  3. Follow the on-screen instructions to complete the installation.
  4. Once installed, you can launch Bruno from the Start Menu or Desktop shortcut.

macOS Installation

  1. Download the .dmg file from the Download Section.
  2. Open the .dmg file; a new window will appear with the Bruno icon.
  3. Drag the Bruno icon into your Applications folder.
  4. Open Bruno from the Applications folder. If macOS blocks it due to Gatekeeper, control-click the app and choose Open to bypass.

Linux Installation

Linux AppImage (x86_64 & Arm64)

  1. Download the .AppImage file from the Download Section.
  2. Open a terminal and make it executable: chmod +x bruno-2.13.2.AppImage.
  3. Run the file with ./bruno-2.13.2.AppImage.
  4. Optionally, integrate it with your system using AppImage tools for easier access.

Debian/Ubuntu (x86_64 & Arm64)

  1. Download the .deb file from the Download Section.
  2. Open a terminal and navigate to the folder where the file is downloaded.
  3. Run sudo dpkg -i bruno-2.13.2*.deb to install.
  4. Resolve dependencies with sudo apt-get install -f.
  5. Launch Bruno from your applications menu.

Red Hat/Fedora/SUSE (x86_64 & Arm64)

  1. Download the .rpm file from the Download Section.
  2. Open a terminal and navigate to the download folder.
  3. Run sudo rpm -i bruno-2.13.2*.rpm to install.
  4. Launch Bruno from your applications menu.

Download Bruno API Client – Best Free Offline API Testing Tool to Replace Postman for Windows, macOS & Linux

Conclusion

If you’re looking for a Postman alternative , you should definitely check Bruno, open-source API client designed to revolutionize the way developers interact with APIs. It stores your API collections directly on your filesystem using a plain text markup language called Bru. It supports REST, GraphQL, or gRPC APIs. It is one of the most trusted open source API client.

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