Free Postman Alternatives

The best free alternative to Postman is Insomnia REST Client, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Postman and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Postman are HTTPie for Terminal, Hoppscotch, RapidAPI for Mac and soapUI.

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Postman alternatives are mainly API Clients but may also be HTTP Clients or HTTP(S) Debuggers.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Postman.
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Postman is a tool that facilitates the development and use of APIs. Postman provides all the functionality needed to create or simulate API specifications and use the Postman Collection Runner to create tests.

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Postman alternatives page was last updated Jul 11, 2024
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  1. API Tester icon
    API Tester icon

    API Tester

     5 likes
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    API Tester is the first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android.

    49 API Tester alternatives
    Test any type of API
    Construct complex requests
    +3
    Import collections

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Mac
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad

    API Tester Features

    1.  REST API
    2.  API Testing
    3.  Websocket testing
    4.  GraphQL API
    5.  Command line interface
    6.  API Management
    API Tester iconPostman Icon

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    Comments about API Tester as an Alternative to Postman
     
    Guest

    Good just for mobile until the postman make the android version

    Positive comment •Jan 20, 2024
    0
    Postman Icon
    API Tester icon
    • API Tester is Free and ProprietaryPostman is Freemium and Proprietary

  2. Posting

     2 likes
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    The modern API client that lives in your terminal.

    61 Posting alternatives
    Posting screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Python
    • BSD
    • Linux
    • Mac
    • Windows

    Posting Features

    1.  Command line interface
    2.  REST Client
    3.  SSH
    4.  Python-based
    5.  REST API
    Postman Icon

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  4. Firecamp icon
    Firecamp icon

    Firecamp

     1 like
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    Firecamp's GraphQL playground is all in one GraphQL debugging tool which let you debug, collaborate and document your GraphQL APIs within a team for all platform.

    7 Firecamp alternatives
    Firecamp screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Online
    • Software as a Service (SaaS)
    • Self-Hosted

    Firecamp Features

    1.  Websocket testing
    2.  API Testing
    3.  GraphQL API
    4.  GraphQL
    Firecamp screenshot 1
    Firecamp screenshot 2
    Firecamp iconPostman Icon

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  5. Kreya icon
    Kreya icon

    Kreya

     1 like
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    Kreya is a GUI client for gRPC and REST APIs with innovative features for environments, authorizations and more.

    53 Kreya alternatives
    Kreya screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux

    Properties

    1.  Lightweight

    Features

    1.  Ad-free
    2.  REST Client
    3.  Cross-Platform
    Kreya iconPostman Icon

    Kreya VS Postman

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  6. Curlie

     2 likes
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    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.

    24 Curlie alternatives
    Curlie screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD

    Curlie Features

    1.  Command line interface
    2.  REST API
    3.  REST Client
    4.  Web Testing
    5.  Data transfer
    Postman Icon

    Curlie VS Postman

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  7. httpYac Rest Client icon
    httpYac Rest Client icon

    httpYac Rest Client

     1 like
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    Used httpyac CLI tool underneath, which helps you execute _.http and _.rest files. This can be used to quickly execute a single *.http file, but also to execute all files in a folder. httpyac supports HTTP, Rest, GraphQL, WebSocket und gRPC...

    45 httpYac Rest Client alternatives
    httpYac Rest Client screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS

    Properties

    1.  Lightweight

    Features

    1.  Ad-free
    2.  Command line interface
    3.  REST Client
    httpYac Rest Client iconPostman Icon

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  9. Requester icon
    Requester icon

    Requester

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

    41 Requester alternatives
    Requester screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux

    Requester Features

    1.  Debugging
    2.  REST API
    Requester screenshot 1
    Requester screenshot 2
    +1
    Requester screenshot 3
    Requester iconPostman Icon

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