Table Column Selector

A Chrome browser extension for selecting and copying column data from web tables. When you need to copy data from a specific column in a table, this extension makes it easy and efficient.

Features
🎯 Precise Column Selection: Click on any column header in a table to select the entire column
📋 One-Click Copy: Copy selected column data to clipboard with a single click
⌨️ Smart Shortcuts: Automatically detects your operating system, showing Ctrl+C for Windows and ⌘+C for Mac
🌍 Multi-language Support: Supports Chinese and English, automatically adapts to browser language
🎨 Visual Feedback: Highlights on hover, blue highlighting when selected
🎉 Copy Notifications: Elegant toast notifications when copying succeeds, auto-disappears after 2 seconds
🌐 Universal Support: Works on any webpage containing HTML tables

Usage
1、Toggle Selection Mode: On a webpage containing tables, click the extension icon, then click "Start Column Selection" to enter selection mode. The button will change to "Stop Selection"
2、Select Column: Hover over table column headers to see highlighting effect, click to select the entire column
3、Copy Data:
Method 1: Press Ctrl+C (Windows) or ⌘+C (Mac) shortcut to copy directly
Method 2: Click the extension icon, then click "Copy Selected Column" button
4、Copy Notification: When copying succeeds, a "✅ Copied successfully" notification will appear and disappear after 2 seconds
5、Stop Selection: Click "Stop Selection" button or press ESC key to exit selection mode. The button will change back to "Start Column Selection"