rep+ is a lightweight Chrome DevTools extension inspired by Burp Suite's Repeater. I often need to poke at a few requests without spinning up the full Burp stack, so I built this extension with the help of LLM (Gemini 3) to keep my workflow fast and focused.

https://bscript.substack.com/p/rep-a-lightweight-alternative-to

• No Proxy Setup: Works directly in Chrome. No need to configure system proxies or install CA certificates like in Burp Suite.
• Capture & Replay: Captures every HTTP request you trigger while testing. Replay any request and freely manipulate the raw method, path, headers, or body to probe endpoints.
• Filters & Regex: Powerful search across URL, headers, and body. Toggle Regex Mode for advanced pattern matching (e.g., finding specific tokens or IDs).
• Converters: Right-click context menu to instantly encode/decode data:
  • Base64
  • URL Encode/Decode
  • JWT Decode (view payload instantly)
  • Hex / UTF-8
• Screenshots: Built-in screenshot tool to capture the request/response pair for bug reports.
• History & Navigation: Undo/redo support for edits and history navigation for selected requests.
• Starring: Pin important requests to keep them at the top of your list.
• Clear Workspace: Instantly clear all captured requests with a single click to start a fresh session.
• Export & Import: Export requests as JSON to share findings with teammates or import them later. Perfect for rep+ ↔ rep+ workflows.
• Bulk Replay: Intruder-style attacks! Mark multiple parameters with §, configure separate payloads (List or Numbers) for each position, and inspect detailed results for every attempt.

1. Clone the repository:

   git clone https://github.com/bscript/rep.git

2. Open Chrome Extensions:
   • Navigate to chrome://extensions/ in your browser.
   • Enable Developer mode (toggle in the top right corner).
3. Load the Extension:
   • Click Load unpacked.
   • Select the rep folder you just cloned.
4. Open DevTools:
   • Press F12 or right-click -> Inspect.
   • Look for the rep+ tab (you might need to click the >> overflow menu).

This combo makes rep+ handy for bug bounty hunters and vulnerability researchers who want Burp-like iteration without the heavyweight UI. Install the extension, open DevTools, head to the rep+ panel, and start hacking. 😎