ReadOnly Monitor

About

Monitor, block, and proxy HTTP requests made by websites and extensions. The ultimate tool for developers, QA testers, and privacy advocates.

ReadOnly Monitor gives you a clear X-ray view of what data is leaving your browser. While standard ad-blockers stop ads, ReadOnly Monitor focuses on state-changing network requests—POST, PUT, DELETE—that send your data to servers. Whether you are debugging an API, auditing a suspicious website, or ensuring no data leaks from your browser, this extension puts you in control.

🚀 Key Features
🔍 Real-Time Request Monitoring
Instantly see how many GET, POST, PUT, and DELETE requests are being made by the active tab.

Visual Dashboard: Clean, modern popup interface displaying live request counts.
Detailed Logs: View the exact URL and HTTP method of every write request.
Extension Monitoring: Detect background requests made by other installed extensions to ensure they aren't silently sending data.
🛡️ ReadOnly Mode (Write Blocking)
Turn your browser into a "read-only" device for specific sites.

Block Outbound Data: Automatically block all POST, PUT, and DELETE requests.
Prevent Accidental Actions: Browse critical tools without fear of modifying data (e.g., deleting a database record).
Security Auditing: Test how web applications behave when write APIs fail.
🌐 Advanced Proxy Routing
Route specific traffic through your own proxies without changing system-wide settings.

Granular Control: Route traffic only for specific domains (e.g., *.test-env.com or api.internal).
Protocol Support: Supports HTTP, HTTPS, and SOCKS proxies.
Easy Configuration: Setup and switch proxies instantly from the popup.
🖥️ Versatile Interface Options
Popup View: Quick stats at a glance.
Side Panel: Keep a persistent log of network activity open while you browse.
Pinned Overlay: A floating "Always-on-Top" widget inside the webpage to monitor traffic in real-time without leaving your workflow.
💡 Use Cases
For Developers: Debug API calls without opening the full DevTools network tab. Verify that your frontend is calling the correct endpoints.
For Security Analysts: Audit websites for hidden data collection and analyze traffic patterns.
For Privacy Users: Ensure no unauthorized data is being sent by sites or extensions. Whitelist trusted domains and block the rest.
For QA Testers: Verify "ReadOnly" user roles or test application error handling by artificially blocking write requests.
🛠️ How to Use
Install & Click: Click the extension icon to see a summary of network requests for the current tab.
Monitor Logs: Open the popup to see a list of recent improper write requests (POST/PUT/DELETE).
Activate ReadOnly Mode: Toggle the switch to block all write requests for the current session.
Pin Overlay: Click "Pin to Page" to keep a mini-monitor visible while you interact with the page.
Configure Proxy: Use the "Proxy Routing" settings to send specific traffic through a custom proxy server (HTTP/SOCKS).
✨ Free vs Pro
Free Version:

Monitor GET, POST, PUT, DELETE request counts.
View logs of recent write requests.
Manage Domain Whitelist to exclude trusted sites.
Pro Features:

🔒 ReadOnly Mode: Actively block write requests to prevent data submission.
🔒 Proxy Routing: Custom proxy rules for specific domains.
🔒 Extension Monitoring: See what your other extensions are doing in the background.
🔒 Side Panel & Overlay: Advanced UI options for multitasking and persistent monitoring.
Privacy First: ReadOnly Monitor analyzes requests locally on your device. No browsing data is ever sent to our servers.

Download ReadOnly Monitor today and take control of your network traffic!