HTTP Toolkit

Active

Country: United Kingdom (GB)
Founded: 2018
Developer: HTTP Toolkit (UK-based)
Pricing: Freemium
Open source: Yes
Platforms: Windows, Linux, macOS, Android

Indexes

API Testing

Overview

HTTP Toolkit is an open-source tool for intercepting, inspecting, debugging, and modifying HTTP/HTTPS traffic from applications, browsers, scripts, and devices. It supports automated setup for desktop environments and mobile devices like Android, allowing users to view requests, set breakpoints, mock responses, and inject errors. Designed for developers testing APIs, debugging network issues, and building HTTP-based applications, it stands out with one-click integrations for various tools and local processing without remote servers.

Key Features

HTTP Traffic Interception - Captures and displays all HTTP/HTTPS requests from apps, browsers, and devices.
Request Breakpoints - Pauses individual requests for inspection and modification before forwarding.
Response Mocking - Mocks endpoints or entire servers to simulate custom responses.
Error Injection - Injects network errors to test application resilience.
Automated Android Setup - Intercepts Android traffic via VPN and CA certificate without manual configuration for most apps.
One-Click Integrations - Automatic setup for Docker, bash scripts, browsers, and mobile apps.
HTTPS Decryption - Decrypts secure traffic using locally generated CA certificates trusted by apps.

Pricing

Plan	Price	Includes
Free	Free	Core interception, viewing, and basic modification for individuals.
Individual Pro	Paid (details in FAQ)	Advanced features, team collaboration, and priority support.

Platforms & Requirements

Runs natively on Windows, Linux, and macOS as a desktop application. Supports Android interception via companion app using VPN and user CA certificates; works automatically for Chromium browsers and emulators, but may require extra steps for non-Chromium browsers or work profiles. No native iOS support mentioned.

Integrations & Ecosystem

Android apps (via VPN/CA)
Docker containers
Bash scripts
Web browsers (Chrome, Brave, Edge)
Android emulators
Rooted Android devices

Alternatives

App	Difference
Charles Proxy	Commercial proxy with broader protocol support but requires more manual setup and lacks open-source nature.
mitmproxy	Command-line open-source proxy focused on scripting; less user-friendly GUI than HTTP Toolkit.
Fiddler	Windows-centric free tool with strong .NET integration; limited cross-platform and mobile support.
Proxyman	macOS/iOS-focused proxy with modern UI; not open-source and platform-limited.

Reputation

HTTP Toolkit is regarded as a user-friendly, open-source alternative for HTTP debugging with strong praise for its automated integrations and Android support. Users value the one-click setup and local privacy focus. Criticisms include limited support for Android work profiles and some non-Chromium browsers requiring manual configuration.

Sources (9)