Postman AlternativesOnly apps categorised as API Clients

The best API Client 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 loads of them are API Clients so hopefully you can find a suitable replacement. Other interesting API Client alternatives to Postman are NativeRest, HTTPie for Terminal, Hoppscotch and Bruno.

filter to find the best alternatives

Postman alternatives are mainly API Clients, but if you're looking for HTTP Clients or HTTP(S) Debuggers 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.
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Alternatives list

  1. Insomnia REST Client icon

    Insomnia REST Client

     145 likes
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    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.
     
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    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. NativeRest icon

    NativeRest

     96 likes
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    Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import/export in light or dark themes.

    Cost / License

    • Pay once
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    NativeRest main window
     
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    80

    • Almost everyone thinks NativeRest is a great Postman alternative.

    • NativeRest is the most popular commercial alternative to Postman.

    • NativeRest is Paid and ProprietaryPostman is Freemium and Proprietary
    • NativeRest is LightweightPostman is not according to our users
  4. HTTPie for Terminal icon

    HTTPie for Terminal

     57 likes
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    HTTPie (pronounced aitch-tee-tee-pie) is a command line HTTP client. Its goal is to make CLI interaction with web services as human-friendly as possible. It provides a simple http command that allows for sending arbitrary HTTP requests using a simple and natural syntax, and...

    35 HTTPie for Terminal alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
    • FreeBSD
    HTTPie for Terminal screenshot 1
     
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    3
    39
    Comments about HTTPie for Terminal as an Alternative to Postman
    scottfrost
    Positive
    1

    Update to the (only) negative comment. The UI is now free (price) but closed source.

    Blue Paint
    Positive
    0

    Can be launched without internet connection (useful in cases of restrictive VPN policy)

    Leonardo Colman
    Negative
    -2

    HTTPie doesn't contain an interface. The current UI is closed behind a private beta.

    Postman Icon
    HTTPie for Terminal icon

    • Most users think HTTPie for Terminal is a great Postman alternative.

    • HTTPie for Terminal is Free and Open SourcePostman is Freemium and Proprietary
    • HTTPie for Terminal is LightweightPostman is not according to our users
  5. Ad
    Screenshot
    NativeRest icon
    NativeRest

    Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import...

    https://nativesoft.com
    Learn More
  6. Hoppscotch icon

    Hoppscotch

     41 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.

    67 Hoppscotch alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    Hoppscotch screenshot 1
     
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    3
    39
    Comments about Hoppscotch as an Alternative to Postman
    notPlancha
    Positive
    0

    Completely free, no account needed for anything, can be used on browser and even offers proxy

    Review by a new / low-activity user.
    Guest
    Positive
    3

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

    Review by a new / low-activity user.
    Max Fisher
    Negative
    -1

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

    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
  7. Bruno icon

    Bruno

     44 likes
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    Bruno is a new and innovative open source API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.

    30 Bruno alternatives

    Cost / License

    • Freemium (Pay once)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Snapcraft
    • Flathub
    • Visual Studio Code
    Bruno screenshot 1
     
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    11
    Comments about Bruno as an Alternative to Postman
    Top Positive Comment
    Port5000
    1

    Lightweight, runs on local, extremely simple and easy to use, enough to test APIs and it even exports to Postman!

    jarne
    Positive
    1

    Best alternative to Postman in my opinion, open source and lightweight, easy to use, and the ability to import existing Postman collections. A nice bonus that you can easily commit Bruno files to Git.

    Review by a new / low-activity user.
    Ola Johansson
    Positive
    0

    Looks nice, and like the simplicity with data just stored in a folder and you can sync it with git or Dropbox or whatnot.

    Show more comments
    3 of 5 comments
    Postman Icon
    Bruno icon

    • Almost everyone thinks Bruno is a great Postman alternative.

    • Bruno is Freemium and Open SourcePostman is Freemium and Proprietary
    • Bruno is LightweightPostman is not according to our users
  8. RapidAPI for Mac icon

    RapidAPI for Mac

     60 likes
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    RapidAPI for Mac (formerly Paw) is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.

    57 RapidAPI for Mac alternatives

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application types

    Platforms

    • Mac
    RapidAPI for Mac screenshot 1
     
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    3
    51
    Comments about RapidAPI for Mac as an Alternative to Postman
    Guest
    Positive
    3

    Simple request chaining (right-click in the UI, no code or globals); Great workflow for when writing a fast-changing API

    Review by a new / low-activity user.
    Guest
    Positive
    1

    Superb flexibility and cookie handling. An entire session with transactions can be constructed in Paw with it's ability to parse incoming data and extract potions for the next request.

    Review by a new / low-activity user.
    malternative
    Positive
    2

    Handles cookies way better than Postman

    Postman Icon
    RapidAPI for Mac icon

    • Most users think RapidAPI for Mac is a great Postman alternative.

    • RapidAPI for Mac is Freemium and ProprietaryPostman is also Freemium and Proprietary
  10. soapUI icon

    soapUI

     59 likes
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    Eviware, the maker of soapUI, Web Service Testing Leader

    soapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web services, but also HTTP based services and JMS Services as well as databases. soapUI is an open source and compl.

    79 soapUI alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    soapUI screenshot 1
     
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    1
    40
    Comments about soapUI as an Alternative to Postman
    DiskCrasher
    Positive
    0

    Can create a mock server for free.

    Postman Icon
    soapUI icon

    • Most users think soapUI is a great Postman alternative.

    • soapUI is Free and Open SourcePostman is Freemium and Proprietary
    • soapUI is LightweightPostman is not according to our users
  11. Advanced REST Client icon

    Advanced REST Client

     27 likes
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    API testing tool. Which allows web developers to create and test custom HTTP requests.

    70 Advanced REST Client alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS
    • AppImageHub
    • Google Chrome
    • Chromium
    Advanced REST Client screenshot 1
     
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    3
    23
    Comments about Advanced REST Client as an Alternative to Postman
    patheticcockroach
    Positive
    2

    Better features than Postman for my use case: I need full control over the headers, including the ability to remove them all, something which Postman doesn't allow to do (they add tons of junk headers)

    blur HY
    Positive
    3

    It has all features postman has, and it's modern

    Guest
    Negative
    0

    The import request are so bad

    Review by a new / low-activity user.
    Postman Icon
    Advanced REST Client icon

    • Most users think Advanced REST Client is a great Postman alternative.

    • Advanced REST Client is Free and Open SourcePostman is Freemium and Proprietary
  12. Yaak icon

    Yaak

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

    65 Yaak alternatives

    Cost / License

    • Free Personal
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Clean an minimal interface
     
  13. Insomnium icon

    Insomnium

     16 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.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Insomnium screenshot 1
     
  14. Requestly icon

    Requestly

     32 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.

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Microsoft Edge
    • Google Chrome
    • Software as a Service (SaaS)
    • Selenium
    • Firefox
    Modify HTTP Headers
     
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    1
    Comments about Requestly as an Alternative to Postman
    Abhishek Sachan
    Positive
    0

    Requestly = Postman + Charles Proxy.

    Review by a new / low-activity user.
    Postman Icon
    Requestly icon

    • 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
  15. 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!

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Linux
    • Mac
    • Windows
    RecipeUI screenshot 1
     
12 of 61 Postman alternatives