Open Source Postman Alternatives
The best open source 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 19 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Postman are HTTPie (Free, Open Source), soapUI (Free, Open Source), Hoppscotch (Free, Open Source) and Advanced REST Client (ARC) (Free, Open Source).
- A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux. View 43 alternatives to Insomnia REST Client
- Freemium • Open Source
- Mac
- Windows
- Linux
Insomnia REST Client vs Postman
Cleaner interface compared to PostmanRemovedUser Very Light and Fast. Really recommendedscottfrost Many of the same features as Postman, but no sync unless you pay. This is a deal breaker to developers who work on multiple computers, like home & work PCs.juls07 Compared to postman this is definitely better the UI is less cluttered there's Linux support, and it just looks nicer.nassyma Full featured, open source, freemiumdavidmiller1990x Found it really useful and fast, thanks!Have very usefule api call history, and clean interface, and lightweight - HTTPie—aitch-tee-tee-pie—is a user-friendly command-line HTTP client for the API era. It comes with JSON support, syntax highlighting, persistent sessions, wget-like downloads, plugins, and more. View 18 alternatives to HTTPie
- Eviware, the maker of soapUI, Web Service Testing LeadersoapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web services... View 49 alternatives to soapUI
- Hoppscotch is an open-source API request builder. It helps you create your requests faster, saving you precious time on your development.Features ? View 42 alternatives to Hoppscotch
- Free • Open Source
- Online
- Self-Hosted
Hoppscotch vs Postman
fully web based interfaceHelps you create your requests faster, saving you precious time on your development - API testing tool. Which allows web developers to create and test custom HTTP requests. View 44 alternatives to Advanced REST Client (ARC)
- Free • Open Source
- Mac
- Windows
- Linux
- Chrome OS
- Google Chrome
- Chromium
- Chrome Web Store
Advanced REST Client (ARC) vs Postman
patheticcockroach 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)The import request are so badblurHY It has all features postman has, and it's modern - A REST client for almost any web service (Firefox and Chrome extension). View 37 alternatives to RESTer
- Free • Open Source
- Mac
- Windows
- Linux
- Google Chrome
- Firefox
RESTer vs Postman
Amazing interface, integrates very well in Firefox, prettyfies the code… What else? - RESTClient can be used to test variety of HTTP communications and RESTful webservices. Friendly GUI, rich functionalities. View 46 alternatives to RESTClient
- Free • Open Source
- Mac
- Windows
- Linux
- A tool for easily making HTTP requests (GET/PUT/POST/DELETE), viewing the responses, and keeping a history of transactions. View 36 alternatives to HttpRequester
Discontinued
Doesn't support Firefox WebExtensions:
https://github.com/tommut/HttpRequester/issues/43Also latest commit d62a6ea on Mar 12, 2017.
- Free • Open Source
- Mac
- Windows
- Linux
- Firefox
- HTTP Toolkit is a suite of open-source tools for debugging, testing and building with HTTP(S). View 36 alternatives to HTTP ToolkitNo screenshots yet
- Freemium • Open Source
- Mac
- Windows
- Linux
- Online
- Don’t just check for 200’s, model complex customer flows and monitor their realtime performance from around the world. Get notified the instant something goes wrong. View 94 alternatives to APId
- Free • Open Source
- Self-Hosted
- Software as a Service (SaaS)