Alternatives to HTTP Toolkit for all platforms with any license

Fiddler

Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet.

Free Windows
HTTP Monitoring Monitor HTTP Traffic One click installation Add a feature

171 Like
Postman

Postman helps you be more efficient while working with APIs. Postman is a scratch-your-own-itch project. The need for it arose while one of the developers was creating...

Freemium Mac Windows Linux Web Chrome OS ... Chrome
Google Chrome Extensions REST API Add a feature

91 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
Separated workspaces Cloud sync Configurable request timeout Electron based ... Import Curl commands Support for Keyboard Shortcuts Image Preview REST API SSL client certificates Support environment variables SVG Editors Variables Add a feature

52 Like
mitmproxy

mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP. It provides a console interface that allows traffic flows to be inspected and edited on the fly. It also...

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

40 Like
Paw

Easily craft your HTTP requests, try them, archive them. Setup HTTP Headers, URL parameters, form-encoded POST key-values or text. Get easy-to-read responses with well...

Commercial $ $ $ Mac
Html parsing Request Chaining Add a feature

33 Like
Charles

Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet....

Commercial Mac Windows Linux
HTTP Monitoring Add a feature

50 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
REST API Add a feature

18 Like
Zed Attack Proxy

The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications. It is designed to be used by people...

Free Open Source Mac Windows Linux
Proxy support Penetration Testing Add a feature

20 Like
Google Lighthouse

Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication.

Free Open Source Mac Windows Linux
Code review Add a feature

8 Like
HttpRequester

A tool for easily making HTTP requests (GET/PUT/POST/DELETE), viewing the responses, and keeping a history of transactions.

Free Open Source Mac Windows Linux Firefox
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
Live HTTP Headers

The goal of this project is to adds information about the HTTP headers in three ways: First by adding a 'Headers' tab in 'View Page Info' of a web...

Free Mac Windows Linux Firefox
Firefox Extensions Support for Multiple Monitors Add a feature

5 Like
HTTP Debugger

HTTP Debugger Pro - A Professional HTTP Sniffer and Analyzer for Developers

Commercial Windows
HTTP Monitoring Support of TFS Add a feature

4 Like
HttpMaster

Practical and easy-to-use software tool for testing http applications and services.

Freemium Windows
Request Chaining REST API Website testing Add a feature

6 Like
Live HTTP Headers (Chrome)

Monitor all HTTP/HTTPs traffic from your browser. Live HTTP Headers logs all HTTP traffic between Google Chrome and the Internet. This extension can be helpful if...
- Warning Suspected of distribute adwares, even after removing the extension
Free Mac Windows Linux Chrome
HTTPS Support Internet Explorer extension Add a feature

5 Like