Best HTTP Clients

HTTP, HTTP2, HTTPS, Websocket debugging proxy.

Paw is a REST client for Mac.

Key RapidAPI for Mac features:

User Interface Team Collaboration Advanced Request Capabilities Extensions and Plugins

Fiddler is a debugging program for websites.

Key Fiddler features:

Comprehensive Debugging Cross-Platform Compatibility Custom Scripting User-Friendly Interface

HTTP proxy / HTTP monitor / Reverse Proxy.

Key Charles Proxy features:

Comprehensive HTTP/HTTPS Debugging User-Friendly Interface Support for Various Platforms Throttling Feature

cURL is a computer software project providing a library and command-line tool for transferring data...

Key cURL features:

Versatility Cross-Platform Command-Line Usage Automation

Open Source

Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.

Key HTTP Toolkit features:

Ease of Use Cross-Platform Compatibility Open Source Comprehensive Debugging Features

Open Source freemium €7.0 / Monthly (for a Pro subscription)

mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP.

Key mitmproxy features:

Open Source Interactive Interface Scripting Support Cross-Platform

Open Source

CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.

Key HTTPie features:

User-Friendly Syntax JSON Support Cross-Platform Plugin Support

Open Source

Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.

Key Proxyman.io features:

User-Friendly Interface Cross-Platform Support Real-time Traffic Interception HTTPS Decryption

Open Source $49.0 / Annually

The Collaboration Platform for API Development.

Key Postman features:

User-Friendly Interface Collaboration Comprehensive Testing Tools Extensive API Documentation

Open Source

Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.

Key Insomnia REST features:

User-Friendly Interface Support for Multiple Protocols Environment Management Custom Plugins and Themes

Open Source

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

HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and...

Open Source