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.

filter to find the best alternatives

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 Sep 17, 2024
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  1. Thunder Client icon
    Thunder Client icon

    Thunder Client

     4 likes
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    Thunder Client is a hand-crafted lightweight Http Client extension for Visual Studio Code. No separate download needed, Just install the extension from VS Code marketplace.

    57 Thunder Client alternatives
    Thunder Client Main Interface

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Visual Studio Code
    Thunder Client Tests

    Properties

    1.  Lightweight

    Features

    1.  API Testing
    2.  REST Client
    3.  REST API
    4.  HTTP Testing
    Thunder Client iconPostman Icon

    Thunder Client VS Postman

    Is Thunder Client a good alternative to Postman?
     
    Comments about Thunder Client as an Alternative to Postman
     
    Ola Johansson

    Nice extension to VS Code that can replace Postman or Insomnia.

    Positive comment •Jun 8, 2021
    0
    scottfrost

    Pulled a bait and switch and now charges for basic features like the ability to sync via GIT

    Negative comment •Jun 7, 2023
    0
    Postman Icon
    Thunder Client icon
    • Thunder Client is Free and ProprietaryPostman is Freemium and Proprietary
    • Thunder Client is LightweightPostman is not according to our users
  2. Cartero icon
    Cartero icon

    Cartero

     1 like
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    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...

    57 Cartero alternatives
    Cartero screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Linux
    • Windows
    • Flathub
    • Flatpak
    • Nix Package Manager
    • Mac

    Cartero Features

    1.  Dark Mode
    2.  Rust
    Cartero iconPostman Icon

    Cartero VS Postman

    Is Cartero a good alternative to Postman?
     
  4. Stoplight icon
    Stoplight icon

    Stoplight

     12 likes
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    Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality, all with an easy, enjoyable developer experience.

    41 Stoplight alternatives
    Stoplight screenshot 1

    License model

    • Freemium • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online

    Stoplight Features

    1.  API Management
    Stoplight iconPostman Icon

    Stoplight VS Postman

    Is Stoplight a good alternative to Postman?
     
    Comments about Stoplight as an Alternative to Postman
     
    Guest

    simple ui get the response..!!!!

    Positive comment •Apr 1, 2017
    0
    Postman Icon
    Stoplight icon
    • Stoplight is Freemium and Open SourcePostman is Freemium and Proprietary
  5. Hello HTTP icon
    Hello HTTP icon

    Hello HTTP

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

    12 Hello HTTP alternatives
    Hello HTTP screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Hello HTTP screenshot 1
    Hello HTTP screenshot 2

    Properties

    1.  Lightweight

    Features

    1.  Portable
    2.  Java based
    3.  GraphQL API
    4.  REST API
    5.  Websocket testing
    Hello HTTP iconPostman Icon

    Hello HTTP VS Postman

    Is Hello HTTP a good alternative to Postman?
     
  6. Pororoca icon
    Pororoca icon

    Pororoca

     2 likes
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    A HTTP inspection tool with support for HTTP/2 and HTTP/3. Alternative to Postman.

    21 Pororoca alternatives
    Example HTTP request and response

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Environments
    Repeaters
    +1
    Response captures

    Properties

    1.  Lightweight

    Features

    1.  Portable
    2.  Ad-free
    3.  HTTP Testing
    4.  SSL client certificates
    5.  API Testing
    6.  API Management
    7.  GraphQL
    8.  API Integration
    Pororoca iconPostman Icon

    Pororoca VS Postman

    Is Pororoca a good alternative to Postman?
     

  7. 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

    Posting VS Postman

    Is Posting a good alternative to Postman?
     

  9. restclient.el

     2 likes
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    This is a tool to manually explore and test HTTP REST webservices. Runs queries from a plain-text query sheet, displays results as a pretty-printed XML, JSON and even images.

    51 restclient.el alternatives
    restclient.el screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • GNU Emacs

    restclient.el Features

    1.  REST API
    2.  REST Client
    3.  Variables
    4.  Web Testing
    5.  API Testing
    Postman Icon

    restclient.el VS Postman

    Is restclient.el a good alternative to Postman?
     
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