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.
Postman iconPostman
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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 Oct 21, 2024
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  1. Insomnium icon
    Insomnium icon

    Insomnium

     15 likes
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    Insomnium is a 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.

    19 Insomnium alternatives
    Insomnium screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    • Mac

    Properties

    1.  Lightweight

    Features

    1.  Command line interface
    2.  Ad-free
    3.  REST Client
    4.  GraphQL API
    5.  Local Storage
    6.  REST API
    Discontinued

    The GitHub repository was archived in May 2024.

    Insomnium iconPostman Icon

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  2. Yaak icon
    Yaak icon

    Yaak

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

    58 Yaak alternatives
    Clean an minimal interface

    License model

    • Free Personal • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Path parameters
    Visual previews for JSON, XML, web pages, images, video, audio, and PDFs
    +1
    Copy any request as cURL

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Support for Themes

    Features

    1.  Autocompletion
    2.  Ad-free
    3.  Dark Mode
    4.  GraphQL API
    5.  Works Offline
    6.  No registration required
    7.  Syntax Highlighting
    8.  Portable
    9.  Variables
    10.  GraphQL
    11.  REST API
    12.  Support environment variables
    Yaak iconPostman Icon

    Yaak VS Postman

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  4. RecipeUI icon
    RecipeUI icon

    RecipeUI

     5 likes
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    RecipeUI is rethinking how we use API tools like Postman or Insomnia. We're starting off with TypeScript powered API requests and API collections you can run in seconds!

    67 RecipeUI alternatives
    RecipeUI screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Linux
    • Mac
    • Windows

    RecipeUI Features

    1.  REST API
    2.  Development API
    3.  API Management
    Discontinued

    The GitHub repository has been archived in February 2024.

    RecipeUI iconPostman Icon

    RecipeUI VS Postman

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  5. xh icon
    xh icon

    xh

     10 likes
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    xh is a friendly and fast tool for sending HTTP requests. It reimplements as much as possible of HTTPie's excellent design, with a focus on improved performance.

    24 xh alternatives
    xh screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD

    Properties

    1.  Lightweight

    Features

    1.  Command line interface
    2.  REST Client
    3.  Web Testing
    4.  REST API
    5.  Support for Unicode
    6.  Data transfer
    xh iconPostman Icon

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  6. Requestly icon
    Requestly icon

    Requestly

     30 likes
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    Requestly is a lightweight proxy available as a browser extension & desktop app to intercept & modify network requests. Using Requestly you can Modify Headers, Redirect Url, Mock API response, Delay/Throttle requests, etc.

    27 Requestly alternatives
    Modify HTTP Headers

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Microsoft Edge
    • Google Chrome
    • Software as a Service (SaaS)
    • Selenium
    • Firefox
    Redirect URL
    Inject Custom JS/CSS
    +1
    Mock HTTP Response & API Endpoints

    Properties

    1.  Lightweight

    Features

    1.  Intercepting HTTP calls
    2.  Requests monitoring
    3.  Bug reporting
    4.  Web page Debugging
    5.  One click interception
    6.  Android Development
    7.  HTTP(S) Debugging
    8.  Real time collaboration
    9.  Ad-free
    10.  Dark Mode
    11.  REST Client
    12.  Command line interface
    Requestly iconPostman Icon

    Requestly VS Postman

    Is Requestly a good alternative to Postman?
     

    • Requestly is the most popular SaaS alternative to Postman.

    • Requestly is Freemium and Open SourcePostman is Freemium and Proprietary
    • Requestly is LightweightPostman is not according to our users
  7. Kusho icon
    Kusho icon

    Kusho

     2 likes
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    Never test your APIs manually again.

    60 Kusho alternatives
    Kusho screenshot 1

    License model

    • Free • Proprietary

    Platforms

    • Visual Studio Code
    • Mac
    • Windows
    • Linux

    Kusho Features

    1.  VSCode
    2.  API Testing
    Kusho screenshot 1
    Kusho screenshot 2
    +2
    Kusho screenshot 3
    Kusho iconPostman Icon

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  9. Chapar icon
    Chapar icon

    Chapar

     Like this app
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    Upcoming API testing tool in beta, built in GoLang, supporting HTTP/gRPC, workspaces, environments, request management, and various content types. Features include dark mode, local data storage, Postman import, environment variable setting, and request chaining.

    52 Chapar alternatives
    Chapar screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Chapar screenshot 1
    Chapar screenshot 2
    +4
    Chapar screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  No Tracking
    2.  Ad-free
    3.  No registration required
    4.  Dark Mode
    5.  Local Storage
    6.  REST API
    7.  HTTP Testing
    8.  API Testing
    Chapar iconPostman Icon

    Chapar VS Postman

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