Private and open-source alternatives to Postman

6 developer tools rated against the same public privacy criteria as Postman, with our picks first.

Why look for an alternative?

• Open source: no. Closed source.
• No trackers or telemetry: no. The website loads Google Tag Manager, the Meta pixel and HubSpot.
• Independent audit: partial. Holds SOC 2 Type II and ISO 27001 certifications, but reports are only available on request through its trust portal.

See the full Postman rating.

The alternatives

1. gitGost Grade B

   Relay for contributing to Git repositories anonymously: add it as a Git remote and it opens a pull request from a shared bot account with author name, email and commit metadata removed.

   gitGost scores 80 out of 100 (grade B) on the developer tools criteria. It meets 3 of 4 criteria: open source, no trackers or telemetry and no ads or data sales.

2. Yaak Grade C

   Offline-first desktop API client for REST, GraphQL, gRPC, WebSocket and server-sent events, storing data locally with optional Git sync. Free for personal use, with a license required for commercial use.

   Yaak scores 65 out of 100 (grade C) on the developer tools criteria. It meets 2 of 4 criteria: open source and no ads or data sales.

3. DevToys Grade D

   Offline desktop toolbox for developers with utilities for JSON, YAML, hashes, JWTs, Base64, text comparison and more, so data does not need to be pasted into online tools.

   DevToys scores 50 out of 100 (grade D) on the developer tools criteria. It meets 2 of 4 criteria: open source and no ads or data sales.

4. Insomnia Grade D

   API client from Kong for REST, GraphQL, gRPC and WebSocket requests, with API design and testing tools. Data can be stored locally, in Git, or synced to Kong's cloud.

   Based in the United States (Five Eyes). Insomnia scores 45 out of 100 (grade D) on the developer tools criteria. It meets 1 of 4 criteria: no ads or data sales.

5. Hoppscotch Grade D

   API development tool for REST, GraphQL, WebSocket and other requests, available as a web app, desktop app and self-hostable server.

   Hoppscotch scores 40 out of 100 (grade D) on the developer tools criteria. It meets 1 of 4 criteria: open source.

6. Bruno Grade F

   Local-first API client that stores collections as plain text files in the filesystem, so they can be versioned with Git. Supports REST, GraphQL, gRPC and WebSocket requests.

   Bruno scores 25 out of 100 (grade F) on the developer tools criteria. It partly meets open source and no ads or data sales.

Compare all 7 developer tools