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.
Postman iconPostman
  171
  • ...

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.

More about Postman
Postman alternatives page was last updated Nov 7, 2024
  1. REST-Explorer icon
     Like this app

    REST-Explorer is an easy to use tool to query or debug REST-based web-services using HTTP or HTTPS. It supports the methods GET, POST, PUT, DELETE, OPTIONS, TRACE, HEAD and PATCH. A request can consist of text (JSON/XML), any kind of HTTP headers and Anonymous, Basic or Windows...

    10 REST-Explorer alternatives
    HTTP response data can be formated according to its content-type and displayed using syntax highlighting for JSON, XML and HTML.

    License model

    • Free PersonalProprietary

    Platforms

    • Windows

    REST-Explorer Features

    1.  REST API
    REST-Explorer iconPostman Icon

    REST-Explorer VS Postman

    Is REST-Explorer a good alternative to Postman?
     
  2. Humlix icon
     1 like

    Humlix shows you an easy way of generating tests for your web APIs. All you need to do is create a test request using the test request builder within Humlix and give an example of how your endpoints look and what type of data they want.

    26 Humlix alternatives
    Humlix screenshot 1

    License model

    • FreeProprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux

    Humlix Features

    1.  API Testing
    Humlix iconPostman Icon

    Humlix VS Postman

    Is Humlix a good alternative to Postman?
     
  3. API Dash icon
     Like this app

    API Dash is a beautiful open-source cross-platform API Client built using Flutter which can help you easily create & customize your API requests, visually inspect responses and generate API integration code. A lightweight alternative to postman/insomnia.

    13 API Dash alternatives
    Application main screen, showing a query that returns an image.

    License model

    • FreeOpen Source

    Application types

    Platforms

    • Windows
    • Mac
    • Linux
    • Debian
    • Ubuntu
    • Linux Mint
    • Fedora
    • Red Hat Enterprise Linux
    • CentOS

    API Dash Features

    1.  Ad-free
    API Dash iconPostman Icon

    API Dash VS Postman

    Is API Dash a good alternative to Postman?
     
  4. Ain icon
     Like this app

    Ain is a command-line HTTP API client. It's an alternative to postman, paw or insomnia. It enables scripting of input and further processing of output. It targets command-line users who work with API:s using a simple file format.

    10 Ain alternatives
    Screenshot displaying that ain can combine over several files
    Screenshot displaying ain using environment variables and output from executables
    Screenshot displaying the built in starter template in ain

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Raspberry Pi

    Ain Features

    1.  API Management
    2.  REST API
    Ain iconPostman Icon

    Ain VS Postman

    Is Ain a good alternative to Postman?
     
  5. REST Client for VS Code icon
     Like this app
    • Send/Cancel/Rerun HTTP request in editor and view response in a separate pane with syntax highlight
    39 REST Client for VS Code alternatives
    REST Client for VS Code screenshot 1

    License model

    • FreeOpen Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS
    • Visual Studio Code

    REST Client for VS Code Features

    1.  REST Client
    2.  VSCode
    REST Client for VS Code iconPostman Icon

    REST Client for VS Code VS Postman

    Is this a good alternative to Postman?
     
  6. KeyRunner icon
     Like this app

    The Zero Trust API Client - A Secure & Free Alternative to Postman , Insomnia & Thunder Client.

    19 KeyRunner alternatives
    UI to Invoke requests (REST,gRPC,Graphql,Websockets)

    License model

    • FreemiumOpen Source

    Application types

    Platforms

    • Mac
    • Windows
    • Visual Studio Code

    Properties

    1.  Lightweight

    Features

    1.  Command line interface
    2.  Ad-free
    3.  REST API
    4.  GraphQL
    KeyRunner iconPostman Icon

    KeyRunner VS Postman

    Is KeyRunner a good alternative to Postman?
     
  7. Escambo icon
     Like this app

    Escambo is an HTTP-based APIs test application for GNOME.

    55 Escambo alternatives
    Escambo screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Linux
    • Flathub
    • Flatpak

    Escambo Features

    1.  API Testing
    Escambo iconPostman Icon

    Escambo VS Postman

    Is Escambo a good alternative to Postman?
     
You are at page 9 of Postman alternatives