Postman Alternatives

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.

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 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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Get a badge for your sitePostman alternatives page was last updated Sep 13, 2026

Ain
Like
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.
Cost / License
Free
Open Source (MIT)
Origin
Sweden
EU
Platforms
Mac
Windows
Linux
Raspberry Pi
Sweden
EU
Good alternative?Is Ain a good alternative to Postman?
Api Quest
1 like
Api Quest is a desktop application designed for executing HTTP requests, storing them on the local file system, and providing portability. Whether you're a developer, QA or system engineer, this tool offers solution for handling HTTP requests effectively.
Cost / License
Free
Proprietary
Application typeApplication types
API Client
HTTP Client
Platforms
Windows
Linux
Good alternative?Is Api Quest a good alternative to Postman?
AirMQTT
1 like
AirMQTT is a native MQTT client that helps you monitor topics, publish messages, and manage multiple MQTT connections with a fast, focused workflow.
Cost / License
Freemium
Proprietary
Platforms
Mac
iPhone
iPad
Android
Good alternative?Is AirMQTT 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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gRPC
1 like
gRPC is a modern open source high performance Remote Procedure Call (RPC) framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication.
Cost / License
Free
Open Source (Apache-2.0)
Origin
United States
Platforms
Self-Hosted
United States
Good alternative?Is gRPC a good alternative to Postman?

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1comment
gRPC vs Postman Comments
Negative comment by Guest · Jan 13, 2025
gRPC is a protocol, Postman is an API testing tool/framework
1 of 1 comments
gRPC is Free and Open SourcePostman is Freemium and Proprietary
Yaade
Like
Yaade is the only open-source, fully self-hosted, collaborative API development environment.
Cost / License
Free
Open Source (MIT)
Application typeApplication types
API Client
HTTP Client
Platforms
Online
Self-Hosted
Good alternative?Is Yaade a good alternative to Postman?

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1comment
Yaade vs Postman Comments
Positive comment by Guest · Feb 2, 2023
This is currently the only true open source and self hosted API client available.
1 of 1 comments
Yaade is Free and Open SourcePostman is Freemium and Proprietary
Yaade is LightweightPostman is not according to our users
OpenReq
2 likes
Build, test, and debug your APIs with a self-hosted tool that does what you actually need. Scripts, environments, OAuth 2.0, code generation, and an AI wizard that builds collections from your docs — no account required, no limits.
Cost / License
Free
Open Source (MIT)
Origin
Hungary
EU
Platforms
Windows
Docker
Self-Hosted
Hungary
EU
+1
Good alternative?Is OpenReq a good alternative to Postman?
P
P
poster (CLI)
1 like
Powerful HTTPie alternative in Go.
Cost / License
Free
Open Source (BSD-3-Clause)
Application typeApplication types
HTTP Client
API Client
Platforms
Mac
Windows
Linux
FreeBSD
DragonFly BSD
NetBSD
OpenBSD
P
Good alternative?Is poster (CLI) a good alternative to Postman?
Nightingale REST Client
4 likes
A modern, resource-friendly REST client for Windows.
Cost / License
Free
Proprietary (MIT)
Application typeApplication types
API Client
HTTP Client
Origin
Canada
Platforms
Windows
Canada
+5
Good alternative?Is this a good alternative to Postman?

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3comments
Nightingale REST Client vs Postman Comments
Positive comment by Guest · Dec 19, 2018
Nightingale is super fast and simple to use. It's highly optimized for Windows 10
Positive comment by Joe Bell · Dec 18, 2018
It's faster than Postman and it uses less resources.
Positive comment by Guest · Nov 21, 2020
It's faster, more stable, and the UI is more intuitive.
3 of 3 comments
Nightingale REST Client is Free and ProprietaryPostman is Freemium and Proprietary
RawRequest
1 like
Keep your http requests in a single file that lives in your projects repo. This app lets you run your http requests from a .http file and includes features like load testing, pre and post request scripts, and request chaining.
Cost / License
Free
Open Source
Application type
HTTP Client
Origin
United States
Platforms
Mac
Windows
United States
Good alternative?Is RawRequest a good alternative to Postman?
Zaku
1 like
Zaku is a native Rust, local-first, open-source API client engineered for speed and productivity.
Cost / License
Free
Open Source (AGPL-3.0)
Application type
API Client
Platforms
Mac
Windows
Linux
Good alternative?Is Zaku a good alternative to Postman?
P
P
Posting
2 likes
The modern API client that lives in your terminal.
Cost / License
Free
Open Source (Apache-2.0)
Application typeApplication types
API Client
HTTP Client
Platforms
Python
BSD
Linux
Mac
Windows
P
Good alternative?Is Posting a good alternative to Postman?
Slumber
Like
Slumber is a TUI (terminal user interface) HTTP client. Define, execute, and share configurable HTTP requests.
Cost / License
Free
Open Source (MIT)
Application type
HTTP Client
Platforms
Mac
Linux
Windows
Good alternative?Is Slumber a good alternative to Postman?

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