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Gostman icon

Gostman

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Free, open-source API client for REST, GraphQL, gRPC and WebSocket with Git-friendly YAML collections and no account required.

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Cost / License

  • Free
  • Open Source (MIT)

Application type

Since

  • New

Updated

  • Updated Oct 2026

Platforms

  • Mac
  • Windows
  • Linux
  • Online
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GitHub repository

  •  55 Stars
  •  6 Forks
  •  4 Open Issues
  •   Updated  
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Gostman was added to AlternativeTo by Kunal-Roy-Choudhury on and this page was last updated .

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What is Gostman?

Gostman is a free, MIT-licensed alternative to Postman, Insomnia and Bruno. It handles REST, GraphQL, gRPC and WebSocket requests, and stores collections as plain YAML files that live in your Git repository, so there is no account and no cloud sync to sign up for.

It ships as a desktop app (Go and Wails), a web app, and a single-binary CLI for CI. Features include a Git panel, tests and a collection runner, CI reports, load testing, a secret scanner, a mock server, code generation for 13 languages, and an MCP server (gostman mcp) so coding agents can run your saved requests. You can import from Postman, OpenAPI, Insomnia, HAR, Bruno, .http files and curl.