docs: add descriptions for all new tools (QR Gen, QR Scanner, URL Cleaner) to README

README.md

@@ -20,6 +20,26 @@ Monitor and capture your clipboard history in real-time.
 - Clears history on demand.
 - Privacy-focused: Data is processed locally and never sent to any server.
 
+### <20> URL Cleaner
+Clean tracking parameters and clutter from URLs.
+- **Privacy:** Removes known tracking parameters (UTM, fbclid, gclid, etc.).
+- **Bulk Processing:** Clean list of URLs at once.
+- **Customizable:** Manage exceptions to keep specific parameters.
+- **Smart:** "Direct Clean" mode for quick single-URL cleaning.
+
+### <20>🔳 QR Generator
+Create custom QR codes instantly.
+- **Customizable:** Adjustable error correction level and size.
+- **Download:** Save as PNG (raster) or SVG (vector) for high-quality printing.
+- **Persistent Settings:** Remembers your preferences.
+
+### 📷 QR Scanner
+Scan QR codes directly from your camera or device.
+- **Privacy First:** Works entirely in the browser using local `BarcodeDetector` API. No images are sent to any server.
+- **Multi-Camera:** Support for front and back cameras with easy switching.
+- **History:** Keeps a log of scanned codes with options to copy or download as JSON.
+- **Responsive:** Fullscreen mode for immersive scanning experience.
+
 ---
 
 ## Chrome Extension 🧩