Thunder Client Alternatives

Apps similar to Thunder Client include Bruno, which is open source with a free version. Other options are Postman, Insomnia REST Client, Yaak and Hoppscotch. API Clients like Thunder Client are a crowded field, with more than 50 alternatives for Mac, Windows, Linux, the web and Chrome OS.

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Alternatives
Thunder Client alternatives page was last updated

Alternatives list

  1. Requester icon

    Requester

     4 likes

    HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and first class support for testing.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Requester screenshot 1
    Good alternative?
     
  2. Curlie icon

    Curlie

     1 like

    If you like the interface of HTTPie but miss the features of curl, curlie is what you are searching for. Curlie is a frontend to curl that adds the ease of use of httpie, without compromising on features and performance.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • FR flagFrance
    • European Union flagEU
    Curlie screenshot 1
    Good alternative?
     
  4. KeyRunner icon

    KeyRunner

     1 like

    The Zero Trust API Client - A Secure & Free Alternative to Postman , Insomnia & Thunder Client.

    Cost / License

    • Freemium
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Visual Studio Code
    • US flagUnited States
    UI to Invoke requests (REST,gRPC,Graphql,Websockets)
    Good alternative?
     
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    NativeRest icon
    NativeRest

    Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import...

    https://nativesoft.com
    Learn More
  6. Lama2 icon

    Lama2

     2 likes

    Lama2 defines the human-friendly l2 syntax and CLI for describing and executing APIs. Store your APIs in plain-text files. Collaborate with team using version control (say, git). Run Lama2 directly from VSCode extension. Think of Lama2 as Markdown for APIs.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Lama2 screenshot 1
    Good alternative?
     
  7. Apiman icon

    Apiman

     4 likes

    apiman is an open source API management layer that streamlines repetitive tasks often required when providing an API, such as implementing security, throttling and billing.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Docker
    Good alternative?
     
  9. httpiness icon

    httpiness

     2 likes

    Httpiness is aimed to be a simple, straightforward HTTP client which minimizes time to configure, send, reconfigure and resend requests in order to maximize development efficiency.

    60 httpiness alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    httpiness screenshot 1
    Good alternative?
     
  10. Assertible icon

    Assertible

     5 likes

    Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • US flagUnited States
    Assertible screenshot 1
    Good alternative?
     
  11. RestCase icon

    RestCase

     1 like

    RestCase is a security-focused API development platform that enables its users to rapidly create secure microservices, mock them in order to start testing, monitor APIs and collaborate on their development and testing.

    40 RestCase alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    RestCase screenshot 1
    Good alternative?
     
  12. Postmate Client icon

    Postmate Client

     2 likes

    Free, privacy-first API client built natively into VS Code. Test REST, GraphQL & WebSocket APIs locally — no login, no cloud sync, no telemetry.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Visual Studio Code
    • US flagUnited States
    Postmate Client request builder in VS Code with dynamic environment variables
    Good alternative?
     
  14. FRequest icon

    FRequest

     1 like

    FRequest is a fast, lightweight and opensource Windows / macOS / Linux desktop program to make HTTP(s) requests (e.g. call REST apis).

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Windows
    Good alternative?
     
  15. Restretto icon

    Restretto

     1 like

    Minimal native and free REST API client for Mac.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    Good alternative?
     
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