ReVex

Browser-based HTTP Repeater for Security Researchers

Features • Installation • Usage • Screenshots • Support

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📸 Screenshots

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🔥 What is ReVex?

ReVex is a powerful Firefox DevTools extension that brings Burp Suite Repeater-like functionality directly into your browser. Capture, modify, and replay HTTP requests without leaving your DevTools — perfect for penetration testers, bug bounty hunters, and security researchers.

✨ Features

Core Functionality

• 📡 Request Capture — Automatically captures all HTTP requests from the current tab
• ✏️ Request Editor — Modify method, URL, headers, and body before resending
• 🔁 HTTP Repeater — Replay modified requests and analyze responses
• 📜 Request History — Browse and select from captured requests

Power User Features

• 🔗 Copy as cURL — Generate valid bash cURL commands with proper escaping
• 🔓 Magic Decoder — Auto-detect and decode Base64, URL-encoded, JWT, and Hex strings
• 🔍 Deep Search — Real-time search with match highlighting and navigation
• 💅 JSON Prettify — One-click formatting for JSON payloads
• 👁️ Response Preview — Render HTML responses in a safe iframe

UI/UX

• 🎨 Cyberpunk Theme — Sleek dark interface with neon green accents
• 📑 Tabbed Interface — Separate Request and Response views (Burp Suite style)
• ⌨️ Keyboard Shortcuts — Ctrl+Enter to send requests
• 🔔 Toast Notifications — Visual feedback for actions

🚀 Installation

From Firefox Add-ons (Recommended)

Manual Installation (Developer Mode)

1. Clone or download this repository

   git clone https://github.com/medjahdi/ReVex.git

2. Open Firefox and navigate to about:debugging

3. Click "This Firefox" in the sidebar

4. Click "Load Temporary Add-on..."

5. Select the manifest.json file from the ReVex folder

6. Open DevTools (F12) and look for the ReVex tab!

📖 Usage

Basic Workflow

1. Open DevTools (F12) and click on the ReVex tab
2. Browse the web — Requests are automatically captured in the History panel
3. Click a request to load it into the editor
4. Modify the method, URL, headers, or body as needed
5. Click SEND (or press Ctrl+Enter) to replay the request
6. Analyze the response in the Response tab

Keyboard Shortcuts

Shortcut	Action
Ctrl + Enter	Send request
Escape	Close decode modal

Magic Decoder

1. Select text in the response body
2. Click the ◈ DECODE button
3. ReVex auto-detects the encoding format:
   • JWT — Decodes header and payload
   • Base64 — Decodes to plain text
   • URL Encoded — Decodes %XX sequences
   • Hex — Converts hex to ASCII

Copy as cURL

Click the ⌘ cURL button to copy a valid bash command with:

• Proper single-quote escaping
• All headers included
• Request body (for POST/PUT)

🛡️ Permissions

ReVex requires the following permissions:

Permission	Purpose
webRequest	Capture HTTP requests
webRequestBlocking	Intercept request details
activeTab	Access current tab's requests
<all_urls>	Send requests to any domain (for the Repeater)

🏗️ Project Structure

ReVex/
├── manifest.json          # Extension manifest (MV3)
├── background.js          # Request capture & relay service
├── logo.png               # Extension icon
├── screenshot.png         # Extension screenshot
├── devtools/
│   ├── devtools.html      # DevTools page loader
│   └── devtools.js        # Panel initialization
├── panel/
│   ├── panel.html         # Main UI structure
│   ├── panel.css          # Cyberpunk styling
│   └── panel.js           # UI logic & features
└── .github/
    └── FUNDING.yml        # Sponsor configuration

💚 Support the Project

If ReVex helps with your security research, consider supporting development:

🤝 Contributing

Contributions are welcome! Feel free to:

• 🐛 Report bugs
• 💡 Suggest features
• 🔧 Submit pull requests

📄 License

This project is open source and available under the MIT License.

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Built with ☠️ by @medjahdi