Insomnium AlternativesAPI & HTTP Clients like Insomnium

Insomnium is described as 'Fast local API testing tool that is privacy-focused and 100% local. For testing GraphQL, REST, WebSockets and gRPC. This is a fork of Kong/insomnia' and is a API Client in the development category. There are more than 25 alternatives to Insomnium for a variety of platforms, including Linux, Mac, Windows, Flathub and Flatpak apps. The best Insomnium alternative is Bruno, which is both free and Open Source. Other great apps like Insomnium are Postman, Insomnia REST Client, Yaak and Hoppscotch.

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Insomnium alternatives page was last updated

Alternatives list

  1. Bruno icon
     48 likes

    Bruno is a new and innovative open source API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.

    37 Bruno alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Snapcraft
    • Flathub
    • Visual Studio Code
     
  2. Postman icon
     178 likes

    Postman is a collaborative platform for API development that provides extensive tools for designing, testing, and documenting APIs. It allows API verification through requests, automated testing via Collection Runner, and offers both free and paid plans, catering to individuals and teams.

    96 Postman alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Chrome OS
    • Google Chrome
    • Flathub
    • Flatpak
    • Snapcraft
     
  3. Yaak icon
     18 likes

    The API client for modern developers. Call REST, GraphQL, and gRPC APIs from a simple and intuitive app.

    71 Yaak alternatives

    Cost / License

    • Free Personal
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
     
  4. Hoppscotch icon
     42 likes

    Hoppscotch is an open-source API development ecosystem. It helps you create your requests faster, saving you precious time on your development.

    70 Hoppscotch alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Online
    • Self-Hosted
     
  5. HTTP client for GNOME featuring GTK 4 UI, organized project management, request history, secure environment variables, JavaScript scripts for preprocessing, export in cURL and more formats, syntax-highlighted response viewing, and advanced request customization.

    16 Roster HTTP Client alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • Flathub
    • Flatpak
    • GNOME
     
  6. Voiden.md icon
     6 likes

    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.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
  7. RapidAPI for Mac (formerly Paw) is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.

    59 RapidAPI for Mac alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
     
  8. soapUI icon
     59 likes

    Eviware, the maker of soapUI, Web Service Testing Leader

    soapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web services, but also HTTP based services and JMS Services as well as databases. soapUI is an open source and compl.

    80 soapUI alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
     
  9. Cartero icon
     5 likes

    Cartero is a graphical HTTP client that can be used as a developer tool to test web APIs and perform all kind of HTTP requests to web servers. It is compatible with any REST, SOAP or XML-RPC API and it supports multiple request methods as well as attaching body payloads to...

    Cost / License

    Application type

    Platforms

    • Linux
    • Windows
    • Flathub
    • Flatpak
    • Nix Package Manager
    • Mac
     
  10. DevTools icon
     Like

    A free, open-source Postman-style API tester you run locally. Record browser requests, auto-generate chained tests, and ship them straight to your CI—no sign-ups, no cloud, just code.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Google Chrome
     
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