The Best Postman AlternativesTop API & HTTP Clients like Postman

Postman is described as 'Collaborative platform for API development providing design, specifications, testing, documentation, and requests with free and paid subscription plans' and is a very popular API Client in the development category. There are more than 100 alternatives to Postman for a variety of platforms, including Windows, Mac, Linux, Web-based and SaaS apps. The best Postman alternative is Insomnia REST Client, which is both free and Open Source. Other great apps like Postman are Hoppscotch, HTTPie for Terminal, Bruno and soapUI.

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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 Web Development, Online, Open Source, Linux, Mac, Windows and Self-Hosted. 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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Insomnia REST Client
147 likes
A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.
106 Insomnia REST Client alternatives
Cost / License
Freemium
Open Source (Apache-2.0)
Application typeApplication types
API Client
HTTP Client
Origin
United States
Platforms
Mac
Windows
Linux
Flathub
Flatpak
United States
+2
Good alternative?Is Insomnia REST Client a good alternative to Postman?

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20comments
Insomnia REST Client vs Postman Comments
Top Positive Comment by dax0 · Aug 26, 2023
Very similar to Postman, but doesn't require logging in for basic features. So useful for some quick testing.
Top Negative Comment by Guest · Aug 28, 2021
It's not lightweight, because still uses Electron and not native, so consuming memory alot
Negative comment by AdinanCenci · Feb 11, 2025
used to like it, now it is as garbage as postman
3 of 20 comments
Insomnia REST Client is Freemium and Open SourcePostman is Freemium and Proprietary
Insomnia REST Client is LightweightPostman is not according to our users
Hoppscotch
45 likes
Hoppscotch is an open-source API development ecosystem. It helps you create your requests faster, saving you precious time on your development.
81 Hoppscotch alternatives
Cost / License
Free
Open Source (MIT)
Application typeApplication types
API Client
HTTP Client
Origin
United States
Platforms
Online
Self-Hosted
United States
Good alternative?Is Hoppscotch a good alternative to Postman?

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3comments
Hoppscotch vs Postman Comments
Positive comment by notPlancha · Apr 8, 2025
Completely free, no account needed for anything, can be used on browser and even offers proxy
Positive comment by Guest · Oct 29, 2019
Helps you create your requests faster, saving you precious time on your development
Negative comment by Max Fisher · Sep 12, 2024
AFAIK, doesn't have a feature to import cURL from clipboard.
3 of 3 comments
Hoppscotch is Free and Open SourcePostman is Freemium and Proprietary
Hoppscotch is LightweightPostman is not according to our users
HTTPie for Terminal
58 likes
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...
Cost / License
Free
Open Source (BSD-3-Clause)
Application typeApplication types
API Client
HTTP Client
Origin
United States
Platforms
Mac
Windows
Linux
Python
FreeBSD
United States
Good alternative?Is HTTPie for Terminal a good alternative to Postman?

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3comments
HTTPie for Terminal vs Postman Comments
Positive comment by scottfrost · Jun 5, 2023
Update to the (only) negative comment. The UI is now free (price) but closed source.
Positive comment by Blue Paint · Feb 6, 2024
Can be launched without internet connection (useful in cases of restrictive VPN policy)
Negative comment by Leonardo Colman · Jun 22, 2022
HTTPie doesn't contain an interface. The current UI is closed behind a private beta.
3 of 3 comments
HTTPie for Terminal is Free and Open SourcePostman is Freemium and Proprietary
HTTPie for Terminal is LightweightPostman is not according to our users
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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...

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Bruno
57 likes
Lightweight open source API client offering offline API testing, local filesystem storage via plain text, version control compatibility with git, intuitive request management, privacy-first design, cross-platform support, minimal resource usage, and community-driven development.
53 Bruno alternatives
Cost / License
Freemium
Open Source (MIT)
Application typeApplication types
API Client
HTTP Client
Origin
United States
Platforms
Mac
Windows
Linux
Snapcraft
Flathub
Visual Studio Code
United States
+1
Good alternative?Is Bruno a good alternative to Postman?

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5comments
Bruno vs Postman Comments
Top Positive Comment by Port5000 · Apr 3, 2025
Lightweight, runs on local, extremely simple and easy to use, enough to test APIs and it even exports to Postman!
Positive comment by jarne · Mar 12, 2025
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.
Positive comment by Ola Johansson · Oct 22, 2024
Looks nice, and like the simplicity with data just stored in a folder and you can sync it with git or Dropbox or whatnot.
3 of 5 comments
Bruno is Freemium and Open SourcePostman is Freemium and Proprietary
Bruno is LightweightPostman is not according to our users
soapUI
59 likes
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.
89 soapUI alternatives
Cost / License
Free
Open Source
Application typeApplication types
API Client
HTTP Client
Origin
United States
Platforms
Mac
Windows
Linux
United States
+1
Good alternative?Is soapUI a good alternative to Postman?

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1comment
soapUI vs Postman Comments
Positive comment by DiskCrasher · Sep 29, 2023
Can create a mock server for free.
1 of 1 comments
soapUI is Free and Open SourcePostman is Freemium and Proprietary
soapUI is LightweightPostman is not according to our users
Advanced REST Client
28 likes
API testing tool. Which allows web developers to create and test custom HTTP requests.
78 Advanced REST Client alternatives
Cost / License
Free
Open Source
Application typeApplication types
API Client
HTTP Client
Origin
Poland
EU
Alerts
Discontinued
Platforms
Mac
Windows
Linux
Chrome OS
AppImageHub
Google Chrome
Chromium
Poland
EU
Good alternative?Is Advanced REST Client a good alternative to Postman?

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3comments
Discontinued
The latest version (17.0.9) is from March 2022.
Advanced REST Client vs Postman Comments
Positive comment by patheticcockroach · Dec 17, 2019
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)
Positive comment by blur HY · Sep 14, 2019
It has all features postman has, and it's modern
Negative comment by Guest · Aug 12, 2020
The import request are so bad
3 of 3 comments
Advanced REST Client is Free and Open SourcePostman is Freemium and Proprietary
Yaak
22 likes
The API client for modern developers. Call REST, GraphQL, and gRPC APIs from a simple and intuitive app.
80 Yaak alternatives
Cost / License
Free Personal
Open Source (MIT)
Application typeApplication types
API Client
HTTP Client
Origin
Canada
Platforms
Mac
Windows
Linux
Canada
+1
Good alternative?Is Yaak a good alternative to Postman?
Insomnium
18 likes
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 (MIT)
Application typeApplication types
API Client
HTTP Client
Origin
International
Alerts
Discontinued
Platforms
Mac
Windows
Linux
Global
Good alternative?Is Insomnium a good alternative to Postman?
RapidAPI for Mac
61 likes
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.
65 RapidAPI for Mac alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
API Client
HTTP Client
Origin
United States
Platforms
Mac
United States
+2
Good alternative?Is RapidAPI for Mac a good alternative to Postman?

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3comments
RapidAPI for Mac vs Postman Comments
Positive comment by Guest · Jun 14, 2017
Simple request chaining (right-click in the UI, no code or globals); Great workflow for when writing a fast-changing API
Positive comment by Guest · Feb 26, 2017
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.
Positive comment by malternative · Mar 4, 2016
Handles cookies way better than Postman
3 of 3 comments
RapidAPI for Mac is Freemium and ProprietaryPostman is also Freemium and Proprietary
ApiArk
5 likes
ApiArk is a local-first API client built with Tauri v2 and Rust. No login, no cloud, no telemetry. Supports REST, GraphQL, gRPC, WebSocket, SSE and MQTT from one interface. Collections are stored as plain YAML files on your filesystem, fully git-diffable.
Cost / License
Free
Open Source (MIT)
Application type
API Client
Origin
Bosnia & Herzegovina
Platforms
Windows
Linux
Mac
Bosnia & Herzegovina
+6
Good alternative?Is ApiArk a good alternative to Postman?
Roster HTTP Client
6 likes
HTTP client for GNOME featuring GTK 4 UI, organized project management, request history, secure environment variables, JavaScript scripts for preprocessing, export in cURL and more formats, syntax-highlighted response viewing, and advanced request customization.
Cost / License
Free
Open Source (GPL-3.0)
Application type
HTTP Client
Origin
Czechia
EU
Platforms
Linux
Flathub
Flatpak
GNOME
Czechia
EU
Good alternative?Is Roster HTTP Client a good alternative to Postman?
Requestly
34 likes
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.
49 Requestly alternatives
Cost / License
Freemium
Open Source
Application typeApplication types
HTTP(S) Debugger
Web Debugger
Origin
United States
Platforms
Mac
Windows
Linux
Online
Microsoft Edge
Google Chrome
Software as a Service (SaaS)
Selenium
Firefox
United States
+1
Good alternative?Is Requestly a good alternative to Postman?

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1comment
Requestly vs Postman Comments
Positive comment by Abhishek Sachan · Jan 24, 2025
Requestly = Postman + Charles Proxy.
1 of 1 comments
Requestly is Freemium and Open SourcePostman is Freemium and Proprietary
Requestly is an HTTP(S) Debugging Postman is an API Client
Requestly is LightweightPostman is not according to our users

12 of 121 Postman alternatives