KProxy

A web application testing tool built for capturing and modifying http/https requests.

Features

• Proxy: Intercept, inspect, and modify HTTP/S traffic between your browser and target applications
• Fuzzer: Perform customized automated attacks with parameterized payloads (requires ffuf)
• Repeater: Manually craft and replay HTTP requests with real-time response analysis
• Decoder: Encode/decode data using various schemes (URL, Base64, JWT, etc.)
• Sitemap: Visualize collected subdomains and paths

Installation

System Requirements/Compatibility

Available for Windows and Linux

Fuzzing tab requires ffuf to be installed and available via PATH

Installation Steps

Install from releases to get started

If you are interested in modifying the source code you can clone the repository and run these commands to get started

#install dependencies
npm ci

#run the application
npm run start

#package executable

npm run svelte-build
npm run package

Quick Start Guide

1. Launch KProxy and create a new project(or open without one)
2. Start the proxy in Settings > Proxy Settings
3. Configure your browser to use KProxy's proxy (default: 127.0.0.1:8080)
4. Browse your target application to populate requests in the application

Contributing/Security

Contact @kusonooyasumi on X