Alternatives to Graphical HTTP Client for Linux with any license

Postman

Postman is a tool that facilitates the development and use of APIs. Postman provides all the functionality needed to create or simulate API specifications and use the...

Freemium $ $ $ Mac Windows Linux Web Chrome OS ... Chrome
Development API REST API API Management Google Chrome Extensions ... CI/CD Graphical interface SOAP API Version and Source control Add a feature

130 Like
Insomnia REST Client

A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.

Freemium $ $ $ Open Source Mac Windows Linux
Lightweight Cloud sync GraphQL Import Curl commands ... Request Chaining Responsive design Separated workspaces Support environment variables API Management Code generation Configurable request timeout Electron based GraphQL integration Support for Keyboard Shortcuts Image Preview REST API SSL client certificates SVG Editors Variables Add a feature

98 Like
Google Chrome Developer Tools

The Google Chrome Developer Tools provide an integrated environment for debugging, optimizing, and understanding a web application, or website, running in Google Chrome....

Free Open Source Mac Windows Linux Chrome
HTTPS Support Support for Javascript Web inspector Add a feature

148 Like
Firefox Developer Tools

Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile.

Free Open Source Mac Windows Linux
Development API Web Browsers Based on Firefox Firefox Extensions Add a feature

33 Like
Advanced REST Client (ARC)

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

Free Open Source Mac Windows Linux Chrome OS Chrome ... Chromium Chrome Web Store
Full headers control Web tool Electron based REST API Add a feature

22 Like
HTTP Toolkit

HTTP Toolkit is a suite of open-source tools for debugging, testing and building with HTTP(S).

Freemium Open Source Mac Windows Linux Web
Built in docs HTTP mocking One click interception OpenAPI integration ... Performance analysis Themes Debugger Proxy Add a feature

10 Like
NetworkMiner

NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows. NetworkMiner can parse PCAP files and regenerate/reassemble transmitted files and certificates from...

Free Open Source Mac Windows Linux
Network Monitoring Portable Sniffer Add a feature

13 Like
RESTer

A REST client for almost any web service (Firefox and Chrome extension).

Free Open Source Mac Windows Linux Chrome Firefox
API Management Google Chrome Extensions Firefox Extensions Project Organization ... Variables Add a feature

5 Like
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HttpRequester

A tool for easily making HTTP requests (GET/PUT/POST/DELETE), viewing the responses, and keeping a history of transactions.
- Discontinued
  Doesn't support Firefox WebExtensions: https://github.com/tommut/HttpRequester/issues/43 Also latest commit d62a6ea on Mar 12, 2017.
Free Open Source Mac Windows Linux Firefox
Debugger Firefox Extensions REST API Add a feature

5 Like
RESTClient

RESTClient can be used to test variety of HTTP communications and RESTful webservices. Friendly GUI, rich functionalities.

Free Open Source Mac Windows Linux
No features added Add a feature

6 Like