Bruno is a free, open-source desktop client for designing, running, and debugging HTTP APIs — a privacy-first alternative to Postman that stores every collection as plain-text files in your Git repository.
What is Bruno?
Bruno is a native Mac application that lets you craft and fire API requests, organise them into collections, and track every change in version control — all without an account, a cloud sync subscription, or data leaving your machine. Collections live on disk as .bru files, a human-readable DSL that diffs cleanly in any Git client. I've been reaching for Bruno instead of Postman for months now and the absence of a login screen alone feels like a small liberation.
What does Bruno do best?
Bruno's standout quality is its Git-native workflow. Because collections are ordinary files on your filesystem, you can commit them alongside your source code, review API changes in pull requests, and roll back to any previous request state without digging through a cloud history UI. That single design decision solves the collaboration problem that plagues teams on Postman's free tier.
Beyond version control, Bruno covers the full API testing loop: environment variables with support for secrets stored locally (never uploaded), pre-request and post-response scripts written in JavaScript, assertion blocks for automated checks, and a built-in response viewer that handles JSON, XML, HTML, images, and binary payloads gracefully. GraphQL queries work just as naturally as REST calls.
- Offline-first: no telemetry, no account required, no data sent to a third-party server.
- Bru DSL: plain-text format that is readable without the app — useful for CI pipelines or quick edits in your editor.
- Environment management: switch between dev, staging, and production configs in one click; secret values stay in a gitignored file.
- Scripting: full Node.js-style JS runtime for pre/post hooks; access bru, req, and res objects without ceremony.
- Collection runner: execute an entire folder of requests sequentially, handy for smoke-testing a suite after a deploy.
Is Bruno free?
Yes — Bruno is completely free to download and use. The core application is MIT-licensed open-source software hosted on GitHub. The maintainers have indicated plans for a paid "Golden Edition" with optional premium features, but as of now every capability described here is available at no cost. There is no free-tier limit on collections, no request cap, and no paywall behind advanced scripting or environment variables.
Who should use Bruno?
Bruno is built for developers who treat their API collections as first-class code artifacts. If your team already uses Git for everything else, the idea of keeping HTTP requests in a Postman workspace that nobody can diff is increasingly awkward — Bruno removes that friction entirely. Backend engineers prototyping new endpoints, frontend developers integrating third-party services, and QA engineers building regression suites will all find a natural home here.
It is not the right tool if you rely heavily on Postman's team workspace features, live collaboration cursors, or the expansive Postman ecosystem of pre-built integrations. And unlike Insomnia — which went through a painful cloud-mandatory pivot — Bruno has been explicit from day one that local-first is non-negotiable, which matters if your organisation has data-residency requirements.
What are the best Bruno alternatives?
The honest comparison set is small. Postman remains the industry default with the richest ecosystem, but its free tier now pushes you toward cloud storage and its desktop client feels increasingly bloated. Insomnia was a favourite until Kong pushed it cloud-mandatory in 2023, triggering a community exodus that partly explains Bruno's growth. Hoppscotch is a capable browser-based option with a self-hosted path. For pure simplicity, RapidAPI for Mac (formerly Paw) is polished and native but costs money and keeps collections in a proprietary format. Bruno sits at a comfortable intersection: free, native, open-source, and Git-compatible in a way none of the others match out of the box.
How does Bruno compare to Postman?
Postman has years of ecosystem depth — more integrations, a larger community library of published collections, and built-in monitoring. Bruno trades all of that for simplicity and privacy. Collections as files versus collections in a cloud account is the crux: Bruno wins on auditability and offline reliability; Postman wins on discovery and team sharing for non-developers. If you are a solo developer or a team comfortable with Git, Bruno's model is objectively cleaner. If your product manager also needs to run requests from a shared workspace without installing anything, Postman's web client still has the edge.
