Postman Alternatives

The top-rated alternative to Postman is Insomnia REST Client, which is open source with a free version. People also recommend Hoppscotch, HTTPie for Terminal, Bruno and soapUI. You're spoiled for choice with API Clients like Postman: we list more than 100 alternatives for Windows, Mac, Linux, the web and self-hosting.

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Most Postman alternatives are API Clients, but you can also narrow the list to HTTP Clients or HTTP(S) Debuggers. Other popular filters are Open Source, Web Development, Online, Android and Linux. You can also filter for EU-based alternatives if you prefer software from the European Union.

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Postman alternatives page was last updated Oct 4, 2026

Atrahasis
Like
Api client and Development Platform.
Cost / License
Freemium
Proprietary
Application typeApplication types
API Client
HTTP Client
Origin
International
Platforms
Windows
Mac
Linux
Global
+4
Good alternative?Is Atrahasis a good alternative to Postman?
A2Apex
Like
The trust layer for AI agents. Test, certify, and discover trusted AI agents built on Google's A2A protocol. 50+ automated compliance tests, trust scores, certification badges, and an agent directory.
Cost / License
Freemium
Proprietary
Application type
Automated Testing
Origin
United States
Platforms
Online
United States
Good alternative?Is A2Apex a good alternative to Postman?
APISpider
Like
APISpider is a lightweight API client for testing, debugging, and documenting REST APIs. It includes request history, collections, environment variables, mock servers, and API docs — all designed to keep your workflow fast and distraction-free.
Cost / License
Free
Open Source (MIT)
Application type
API Client
Platforms
Software as a Service (SaaS)
Online
Good alternative?Is APISpider a good alternative to Postman?
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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...

https://nativesoft.com
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Flowtest
Like
Create multi-step HTTP API checks in a visual editor by chaining requests, extracting response values, applying conditional logic, and setting assertions. Runs can be scheduled or triggered in CI/CD, logging payloads, assertion results, and timings for debugging.
Cost / License
Freemium
Proprietary
Application type
API Client
Origin
Spain
EU
Platforms
Online
Software as a Service (SaaS)
Spain
EU
Good alternative?Is Flowtest a good alternative to Postman?
ZeroWebTools
Like
A secure, local-first browser extension that packs essential developer utilities, JSON formatters, and JWT decoders directly into your toolbar.
Cost / License
Free
Proprietary
Origin
India
Platforms
Online
Google Chrome
India
Good alternative?Is ZeroWebTools a good alternative to Postman?
GetAPI
Like
GetAPI is a native macOS app that simplifies REST API testing by allowing users to import from Postman, make HTTP requests, and view responses in a streamlined interface.
Cost / License
Paid
Proprietary
Application typeApplication types
HTTP Client
API Client
Origin
United States
Platforms
Mac
United States
+2
Good alternative?Is GetAPI a good alternative to Postman?
ThirdWatch
Like
ThirdWatch is a next-generation API monitoring platform designed for development teams who need reliable uptime tracking across all their services.
Cost / License
Paid
Proprietary
Origin
France
EU
Platforms
Online
France
EU
Good alternative?Is ThirdWatch a good alternative to Postman?
ProtoPeek
Like
ProtoPeek is a local-first, open-source workbench for inspecting gRPC and HTTP services. It runs a local Go process with a browser-based console and command-line entry points.
Cost / License
Free
Open Source (MIT)
Application type
API Client
Platforms
Windows
Linux
Mac
Good alternative?Is ProtoPeek a good alternative to Postman?
apikumo
Like
apikumo is an API workspace that combines an API client, a hosted documentation site, and a live MCP (Model Context Protocol) endpoint in one place. Design your API once, and every AI agent can call it.
Cost / License
Free
Proprietary
Application type
API Client
Platforms
Online
Good alternative?Is apikumo a good alternative to Postman?
ReqResp
Like
ReqResp is a fast, lightweight, and modern API testing app designed for developers, testers, and backend engineers. It helps you create, send, and analyze HTTP requests with ease — anytime, anywhere.
Cost / License
Free
Proprietary
Application type
HTTP Client
Platforms
Android
Good alternative?Is ReqResp a good alternative to Postman?
Tetiva
Like
Tetiva is a desktop API client for HTTP, gRPC, GraphQL and WebSocket. It is built with Go and Wails on the system web view rather than Electron, so the download is around 30 MB.
Cost / License
Freemium
Open Source (MIT)
Platforms
Mac
Windows
Linux
+3
Good alternative?Is Tetiva a good alternative to Postman?
Telegraph REST API Client
Like
Lightweight, free and open-source offline REST and GraphQL API client for Visual Studio Code. A privacy-focused client for testing APIs, HTTP requests and web services.
52 Telegraph REST API Client alternatives
Cost / License
Free
Open Source (MIT)
Application type
API Client
Origin
India
Platforms
Cursor
Windsurf
Visual Studio Code
India
+9
Good alternative?Is this a good alternative to Postman?

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