Postman Alternatives Filtered by 'Web Development'

The best alternative to Postman is Insomnia REST Client, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Postman and 11 are so hopefully you can find a suitable replacement. Other interesting alternatives to Postman are Insomnium, Reqable, TestMace and EchoAPI.

filter to find the best alternatives

Postman alternatives are mainly HTTP Clients, but if you're looking for API Clients or Uptime Monitor Services you can filter on that. Other popular filters include Open Source, Linux, Android, Web Development, Online, Mac and API Client. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Postman.
More about Postman
Copy a direct link to this comment to your clipboard
Postman alternatives page was last updated

Alternatives list

  1. Insomnia REST Client icon

    Insomnia REST Client

     145 likes
    Copy a direct link to this comment to your clipboard

    A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.

    81 Insomnia REST Client alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    Specify URL, payload, headers, and authorization all in one place. Then just hit send.
     
    |
    20
    175
    Comments about Insomnia REST Client as an Alternative to Postman
    Comment summary: Insomnia REST Client is favored for its lightweight, intuitive design, and lack of login requirement for basic features compared to Postman. Users value its cleaner interface, Linux support, and full features even in the freemium model. However, it lacks team collaboration features and multi-device sync without payment. While praised for better UI and storage efficiency, some users note that request chaining and environment setup are still experimental, unlike Postman's polished offerings.
    Top Positive Comment
    dax0
    1

    Very similar to Postman, but doesn't require logging in for basic features. So useful for some quick testing.

    Top Negative Comment
    Guest
    7

    It's not lightweight, because still uses Electron and not native, so consuming memory alot

    Review by a new / low-activity user.
    AdinanCenci
    Negative
    0

    used to like it, now it is as garbage as postman

    Show more comments
    3 of 20 comments
    Postman Icon
    Insomnia REST Client icon

    • Almost everyone thinks Insomnia REST Client is a great Postman alternative.

    • Insomnia REST Client is the most popular Windows, Mac & Linux alternative to Postman.

    • Insomnia REST Client is the most popular Open Source & free alternative to Postman.

    • Insomnia REST Client is Freemium and Open SourcePostman is Freemium and Proprietary
    • Insomnia REST Client is LightweightPostman is not according to our users
  2. Insomnium icon

    Insomnium

     16 likes
    Copy a direct link to this comment to your clipboard

    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.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Insomnium screenshot 1
     
  4. Reqable icon

    Reqable

     4 likes
    Copy a direct link to this comment to your clipboard

    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).

    11 Reqable alternatives

    Cost / License

    • Freemium (Pay once or Subscription)
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Flathub
    • Flatpak
    Reqable screenshot 1
     

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

    • Reqable is Freemium and ProprietaryPostman is also Freemium and Proprietary
    • Reqable is LightweightPostman is not according to our users
  5. TestMace icon

    TestMace

     6 likes
    Copy a direct link to this comment to your clipboard

    Powerful IDE to work with API. Harness the power of scenarios, autocompletion and syntax highlight for API development. Write tests, share code without leaving the comfortable development environment.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    TestMace screenshot 1
     
    |
    7
  6. EchoAPI icon

    EchoAPI

     Like
    Copy a direct link to this comment to your clipboard

    EchoAPI is an all-in-one API development collaboration platform that offers essential features like API debugging, design, automated testing, stress testing, and documentation generation.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Google Chrome
    • Visual Studio Code
    • IntelliJ IDEA
     
  9. Milkman icon

    Milkman

     Like
    Copy a direct link to this comment to your clipboard

    Milkman is a JavaFx-based workbench for crafting requests / responses. It is not limited to e.g. http (or more specifically rest) requests but can be extended in any imaginable way. It is optimized for fast startup and efficient workflow.

    28 Milkman alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Milkman screenshot 1
     
  10. Assertible icon

    Assertible

     5 likes
    Copy a direct link to this comment to your clipboard

    Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place.

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Assertible screenshot 1
     

  11. restclient.el

     2 likes
    Copy a direct link to this comment to your clipboard

    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.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • GNU Emacs
    restclient.el screenshot 1
     
  12. FRequest icon

    FRequest

     1 like
    Copy a direct link to this comment to your clipboard

    FRequest is a fast, lightweight and opensource Windows / macOS / Linux desktop program to make HTTP(s) requests (e.g. call REST apis).

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Windows
     
    |
    1
    Comments about FRequest as an Alternative to Postman
    KaKi87
    Positive
    0

    Free and open source multiplatform non-Electron app with dark theme.

    Postman Icon
    FRequest icon
    • FRequest is Free and Open SourcePostman is Freemium and Proprietary
  13. RequestBite Slingshot icon

    RequestBite Slingshot

     1 like
    Copy a direct link to this comment to your clipboard

    Slingshot is a web-based HTTP request client that is highly performant, low on resources, privacy respecting, local-first, free and open-source. It stores all your data locally in your browser. It allows you to import and export OpenAPI specs and Postman collections.

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Platforms

    • Online
    • Self-Hosted
    Request editor in Slingshot.
     
11 of 11 Postman alternatives