usebruno/bruno - OSS Alternative - Discover Top Open Source Alternatives to Popular Software
API Client IDE
43.5k 2026-05-06

usebruno/bruno

Bruno is an open-source, offline-first API client IDE that stores collections directly on the filesystem, enabling seamless collaboration via Git and prioritizing user data privacy.

Core Features

Cross-platform compatibility (Mac, Windows, Linux)
Collaboration through Git or any version control system
Offline-only operation for enhanced data privacy
Collections stored as plain text markup (Bru) on the filesystem
Lightweight alternative to commercial API testing tools

Quick Start

brew install bruno

Detailed Introduction

Bruno is an innovative open-source API client IDE designed to challenge the status quo of tools like Postman and Insomnia. It distinguishes itself by storing API collections directly on the user's filesystem using a plain text markup language (Bru), which facilitates seamless collaboration through any version control system, especially Git. Emphasizing data privacy, Bruno operates strictly offline, ensuring user data remains on their device. This approach offers a lightweight, transparent, and developer-friendly environment for exploring and testing APIs.

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