Postman AlternativesOnly Free apps categorised as HTTP(S) Debuggers

The best free HTTP(S) Debugger alternative to Postman is Hoppscotch, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Postman and four of them are free HTTP(S) Debuggers so hopefully you can find a suitable replacement. Other interesting free HTTP(S) Debugger alternatives to Postman are Requestly, HttpMaster and CurlHub.io.

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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 Sep 12, 2024
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  1. Hoppscotch icon
    Hoppscotch icon

    Hoppscotch

     39 likes
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    Hoppscotch is an open-source API development ecosystem. It helps you create your requests faster, saving you precious time on your development.

    63 Hoppscotch alternatives
    Hoppscotch screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    Hoppscotch screenshot 1
    Hoppscotch screenshot 2

    Properties

    1.  Lightweight

    Features

    1.  REST API
    2.  Ad-free
    3.  GraphQL API
    4.  Websocket streams
    5.  Command line interface
    6.  Portable
    7.  Cross browser testing
    8.  Browser-based
    Hoppscotch iconPostman Icon

    Hoppscotch VS Postman

    Is Hoppscotch a good alternative to Postman?
     
    Comments about Hoppscotch as an Alternative to Postman
     
    Max Fisher

    AFAIK, doesn't have a feature to import cURL from clipboard.

    Negative comment •Sep 12, 2024
    0
    Guest

    Helps you create your requests faster, saving you precious time on your development

    Positive comment •Oct 29, 2019
    3
    Postman Icon
    Hoppscotch icon

    • Most users think Hoppscotch is a great Postman alternative.

    • Hoppscotch is the most popular Web-based & Self-Hosted alternative to Postman.

    • Hoppscotch is Free and Open SourcePostman is Freemium and Proprietary
    • Hoppscotch is LightweightPostman is not according to our users
  2. Requestly icon
    Requestly icon

    Requestly

     28 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.  Ad-free
    8.  Dark Mode
    9.  Real time collaboration
    10.  No Coding Required
    11.  Command line interface
    12.  Traffic Monitoring
    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
  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.

    53 HttpMaster alternatives
    Main window

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Windows
    Request item properties
    Parameter definition
    +7
    Validation definition

    Properties

    1.  Lightweight

    Features

    1.  Command line interface
    2.  Request Chaining
    3.  Website testing
    4.  REST API
    HttpMaster iconPostman Icon

    HttpMaster VS Postman

    Is HttpMaster a good alternative to Postman?
     
  5. CurlHub.io icon
    CurlHub.io icon

    CurlHub.io

     1 like
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    API Traffic Inspector.

    24 CurlHub.io alternatives
    CurlHub.io screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Software as a Service (SaaS)

    CurlHub.io Features

    1.  API Management
    2.  Traffic Analysis
    3.  Debugging
    4.  Traffic Monitoring
    CurlHub.io screenshot 1
    CurlHub.io iconPostman Icon

    CurlHub.io VS Postman

    Is CurlHub.io a good alternative to Postman?
     
4 of 4 Postman alternatives