HTTP Toolkit Free and Open Source Desktop App CookApps CookApps Marketplace

Overview

![100% Open-Source](https://github.com/httptoolkit/) ![Desktop downloads counter](https://github.com/httptoolkit/httptoolkit-desktop/releases/latest) ![GitHub Org's stars](https://github.com/httptoolkit/) ![Bluesky](https://bsky.app/profile/httptoolkit.com) ![Mastodon](https://mastodon.social/@httptoolkit/) ![X (formerly Twitter)](https://twitter.com/httptoolkit/) ![HTTP Toolkit is sustainably funded by its Pro users & supporters](https://httptoolkit.com/get-pro/) ![HTTP Toolkit has received funding from the EU's Horizon 2020 funds as part of NGI Pointer](https://www.ngi.eu/funded_solution/ngi-pointer-project-36) ![HTTP Toolkit has received funding from NLnet as part of NGI Zero Entrust](https://nlnet.nl/project/AppInterception/) HTTP Toolkit is an open-source tool for debugging, testing and building with HTTP(S) on Windows, Linux & Mac. You can use it to intercept, inspect & rewrite HTTP(S) traffic, from everything to anywhere. Explore Android app traffic, mock requests between your microservices, and x-ray your browser traffic to debug, understand and test anything.

HTTP Toolkit is built on open-source principles to guarantee security, privacy, and full reproducibility. All sensitive data transformations run locally on your hardware with zero telemetry or unexpected cloud dependencies.

Key Technical Features & Capabilities

Instantly intercept browsers, most backend & scripting languages (from Node.js to PHP), Android devices, Electron apps and more with one-click setup.: Streamlined desktop functionality optimized for macOS and Windows.

Collect interesting traffic without intercepting everything on your whole machine, so there's no extra noise and no side-effects - just the traffic you care about.: Streamlined desktop functionality optimized for macOS and Windows.

Inspect the full headers & body for every request & response from every client, to immediately see what's really being sent & received on the wire.: Streamlined desktop functionality optimized for macOS and Windows.

Easily understand collected HTTP traffic, with inline documentation for all standard headers & response statuses, plus body decoding, highlighting, folding, and other niceties, powered by the same internals as Visual Studio Code.: Streamlined desktop functionality optimized for macOS and Windows.

Send HTTP requests, with a fully featured HTTP client to send your own custom requests, or resend (and tweak) requests intercepted from other clients: Streamlined desktop functionality optimized for macOS and Windows.

Quickly find the data you care about, with exchanges highlighted by the type of client and tagged by category (images, JSON responses, errors), and free-text & structured filtering across all request & response data.: Streamlined desktop functionality optimized for macOS and Windows.

Breakpoint live requests or responses, to rewrite HTTP traffic on the fly.: High-performance integrated capability designed for native HTTP Toolkit workflow.

Mock endpoints or servers, with flexible rule configurations to match and handle requests automatically, to send responses, inject failures & timeouts, or transparently redirect requests elsewhere.: Streamlined desktop functionality optimized for macOS and Windows.

Architecture & Technology Stack

Primary Languages: Rust, TypeScript, C++

Frameworks & UI Runtime: Tauri 2, Qt / Native C++

Build Systems & Tooling: Cargo, pnpm / npm, CMake

Supported Platforms: macOS 12.0+ (Apple Silicon M1-M4 & Intel x86_64), Windows 10/11 x64, Linux

System Requirements

Specification	Minimum Requirement	Recommended Specification
Operating System	macOS 12.0 Monterey / Windows 10 x64	macOS 14.0+ Sonoma / Windows 11 x64
Processor Architecture	Apple Silicon (M1+) or Intel Core i5 x64	Apple Silicon Unified Memory (M2/M3/M4)
Memory (RAM)	4 GB Unified RAM	8 GB+ High-Speed RAM
Storage Space	300 MB available local disk space	1 GB+ SSD storage
GPU Acceleration	Metal 2 / DirectX 12 compatible	Apple Neural Engine / Vulkan capable

Installation & Setup Guide

1 Redit

macOS Installation (Recommended)

Download the verified .dmg release installer directly from CookApps.

Open the disk image and drag HTTP Toolkit.app into your /Applications folder.

Launch HTTP Toolkit via Spotlight (Cmd + Space) or Launchpad.

Alternatively, install using Homebrew if available:

bash

brew install --cask http-toolkit

Windows Installation

Download the official installer package (.exe / .msi).

Run the executable and follow the setup wizard.

Launch HTTP Toolkit from the Start Menu or desktop shortcut.

Building from Source (Development Setup)

bash

git clone https://github.com/httptoolkit/httptoolkit.git
cd httptoolkit
pnpm install || cargo build --release
pnpm run build

Installation & Setup Guide

Mở khóa ứng dụng để xem chi tiết hướng dẫn cài đặt, cấu hình môi trường và vận hành.

How to Use & Workflow

1 Redit

Application Launch & Workspace: Open HTTP Toolkit to load the responsive native workspace.

Configuration & Preferences: Press Cmd + , (macOS) or Ctrl + , (Windows) to configure hardware acceleration, custom directories, and display themes.

Primary Operation: Drag-and-drop source files or input parameters directly into the central window.

Execution & Export: Initiate the processing pipeline and verify output files saved directly to your chosen local directory.

How to Use & Workflow

Mở khóa ứng dụng để xem chi tiết hướng dẫn cài đặt, cấu hình môi trường và vận hành.

Troubleshooting & Common Issues

Problem: macOS Gatekeeper displays *"App is damaged and can't be opened"* or unnotarized developer notice.

Root Cause: macOS quarantine flag set on binaries downloaded outside the Mac App Store.

Resolution: Open Terminal and run:

bash

    xattr -cr /Applications/HTTP Toolkit.app

Alternatively, navigate to System Settings > Privacy & Security and select Open Anyway.

Problem: High memory consumption during batch processing operations.

Root Cause: Large media buffers retaining uncompressed state.

Resolution: Adjust batch concurrency in settings or process assets in focused batches.

HTTP Toolkit

Overview

Key Technical Features & Capabilities

Architecture & Technology Stack

System Requirements

Installation & Setup Guide

macOS Installation (Recommended)

Windows Installation

Building from Source (Development Setup)

Installation & Setup Guide

How to Use & Workflow

How to Use & Workflow

Troubleshooting & Common Issues

How to Use & Getting Started

How to Use & Getting Started

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