Software Alternatives, Accelerators & Startups

Hello HTTP

A cross-platform HTTP client desktop application for testing HTTP and REST APIs, WebSocket, GraphQL (including subscriptions) and gRPC endpoints.

Top 7 Open-Source Alternatives to Hello HTTP

Hello HTTP
Insomnia REST Postman Voiden.md Hoppscotch RecipeUI Step CI

Summary

The top open-source alternatives to Hello HTTP are Insomnia REST, Postman, and Voiden.md. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.
  1. Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a devโ€‘friendly UI, built-in automation, and an extensible plugin ecosystem.
    Pricing:
    • Open Source

    #API #API Tools #Developer Tools 134 social mentions

  2. The Collaboration Platform for API Development
    Pricing:
    • Open Source

    #API Tools #Developer Tools #APIs 30 social mentions

  3. Voiden.md is an offline-first, Git-native API workspace that unifies specs, docs, tests, and mocks using programmable Markdown blocks. Build APIs the way you actually work.
    Pricing:
    • Open Source
    • Free
    • Free Trial

    #API Tools #Developer Tools #APIs 32 social mentions

  4. Open source API development ecosystem
    Pricing:
    • Open Source
    • Freemium
    • Free Trial

    #Productivity #API Tools #Developer Tools 102 social mentions

  5. Browser based HTTP client inspired by Insomnia and Postman
    Pricing:
    • Open Source

    #API Tools #Developer Tools #APIs 7 social mentions

  6. Open source type-safe Postman alternative
    Pricing:
    • Open Source

    #Productivity #Developer Tools #APIs 2 social mentions

  7. API Testing and Monitoring made simple
    Pricing:
    • Open Source

    #API #Developer Tools #Developer Tool 12 social mentions

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