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 Bruno.

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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Collaborative platform for API development providing design, specifications, testing, documentation, and requests with free and paid subscription plans.

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Postman alternatives page was last updated Feb 13, 2025
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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.

    59 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. RESTer icon
    RESTer icon

    RESTer

     6 likes
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    A REST client for almost any web service (Firefox and Chrome extension).

    50 RESTer alternatives
    RESTer screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Google Chrome
    • Firefox

    RESTer Features

    1.  Command line interface
    2.  Project Organization
    3.  API Management
    4.  Variables
    RESTer screenshot 1
    RESTer screenshot 2
    RESTer iconPostman Icon

    RESTer VS Postman

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

    Amazing interface, integrates very well in Firefox, prettyfies the code… What else?

    Positive comment •Sep 13, 2018
    1
    Postman Icon
    RESTer icon

    • Almost everyone thinks RESTer is a great Postman alternative.

    • RESTer is Free and Open SourcePostman is Freemium and Proprietary
  4. HttpMaster icon
    HttpMaster icon

    HttpMaster

     7 likes
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    Practical and easy-to-use software tool for testing HTTP applications and services.

    54 HttpMaster alternatives
    HttpMaster screenshot 1

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Windows
    HttpMaster screenshot 1
    HttpMaster screenshot 2
    +7
    HttpMaster screenshot 3

    Properties

    1.  Lightweight

    Features

    1.  Command line interface
    2.  Ad-free
    3.  Portable
    4.  Request Chaining
    5.  Website testing
    6.  REST API
    HttpMaster iconPostman Icon

    HttpMaster VS Postman

    Is HttpMaster a good alternative to Postman?
     
  5. Reqable icon
    Reqable icon

    Reqable

     2 likes
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    Reqable is a modern cross-platform project, designed for API development, testing, and debugging. Reqable fully supports HTTP1 and HTTP2 and partially supports HTTP3(QUIC).

    10 Reqable alternatives
    Reqable screenshot 1

    License model

    • Freemium • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Reqable screenshot 1
    Reqable screenshot 2
    +9
    Reqable screenshot 3

    Top Reqable Features

    1.  Real time collaboration
    2.  Live Preview
    3.  Support for scripting
    4.  No Coding Required
    5.  Command line interface
    6.  File Tagging
    7.  No Tracking
    8.  Syntax Highlighting
    9.  End-to-End Encryption
    10.  Ad-free
    11.  Portable
    12.  No registration required
    Reqable iconPostman Icon

    Reqable VS Postman

    Is Reqable a good alternative to Postman?
     

    • Reqable is the most popular Android, iPhone, iPad & Android Tablet alternative to Postman.

    • Reqable is Freemium and ProprietaryPostman is also Freemium and Proprietary
  6. WizTools RESTClient icon
    WizTools RESTClient icon

    WizTools RESTClient

     6 likes
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    RESTClient can be used to test variety of HTTP communications and RESTful webservices. Friendly GUI, rich functionalities.

    59 WizTools RESTClient alternatives
    WizTools RESTClient screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux

    WizTools RESTClient Features

    1.  REST Client
    WizTools RESTClient screenshot 1
    WizTools RESTClient screenshot 2
    Discontinued

    The project seems no longer developed. Last version, 3.7.1, released in December 2018, can be still downloaded from GitHub

    WizTools RESTClient iconPostman Icon

    WizTools RESTClient VS Postman

    Is WizTools RESTClient a good alternative to Postman?
     
  7. 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.

    54 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

    Is Kreya a good alternative to Postman?
     
  9. Hurl icon
    Hurl icon

    Hurl

     7 likes
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    Hurl is a command line tool that runs HTTP requests defined in a simple plain text format. It can capture values, evaluate queries on headers and body response. It is very versatile: it can be used for both fetching data and testing HTTP sessions.

    35 Hurl alternatives
    Html report

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Error output
    Hurl file

    Properties

    1.  Lightweight

    Features

    1.  Command line interface
    2.  Portable
    3.  Cross-Platform
    4.  REST API
    5.  API Integration
    Hurl iconPostman Icon

    Hurl VS Postman

    Is Hurl a good alternative to Postman?
     
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