Interactive Markdown Table Editor

A VS Code extension that provides an intuitive interface for editing Markdown tables.

Quick Start

1. Open a Markdown file containing a table
2. Right-click and select "Open Table Editor" or use the Command Palette (Cmd/Ctrl+Shift+P) and run "Markdown Table Editor: Open Table Editor"

Features

UI and Basic Operations

• Interface: Grid display for intuitive Markdown table editing with always-visible headers and row numbers
• Data Synchronization: Real-time sync between VS Code editor and Table Editor

Cell Editing

• Ctrl+C/Ctrl+V for copying and pasting cell content (non-editing mode)
• Ctrl+X/Ctrl+V for cutting and pasting cell content (non-editing mode)

Table Operations

• Add/Delete Rows & Columns: Right-click on headers to add and delete rows and columns
• Drag & Drop: Reorder rows and columns by dragging
• Column Width Management:
  • Manual resizing with drag handles
  • Double-click resize handles for auto-fit to content
  • Persistent column widths across sessions
• Sorting: Click column header sorting button to sort data in the table editor without modifying the file

Advanced Features

• Autofill:
  • Drag the fill handle (bottom-right corner of selection) to auto-fill cells
  • Automatically detects patterns: numbers (1, 2, 3...), dates, weekdays, months
  • Multiple date formats supported (2024/01/29, 1/29, 2025/1/1, preserves original format)
  • Smart text with number increment (Item 1 → Item 2, Test-A-5 → Test-A-6)
  • Preserves zero-padding (001, 002, 003...)
  • Handles multiple numbers by incrementing the last occurrence
  • Copies values as-is when no pattern is detected
• CSV Import: Import CSV data from file or clipboard, inserting or replacing existing table
• CSV Export: Export table data to CSV format
• Multiple Tables Support: Manage and edit multiple tables within a single document using tab interface. Accurately tracks and updates each table with index management

Keyboard Shortcuts

Navigation (Non-editing mode)

• Arrow Keys: Navigate between cells
• Ctrl+Arrow Keys: Jump to data boundaries (Excel-like navigation)
• Enter: Start editing the selected cell
• Tab: Move to next cell/row
• Shift+Tab: Move to previous cell
• Ctrl+C / Cmd+C: Copy selected cell(s) content
• Ctrl+V / Cmd+V: Paste clipboard content to selected cell(s)
• Ctrl+X / Cmd+X: Cut selected cell(s) content
• Delete/Backspace: Clear selected cell(s) content

Editing mode

• Enter: Confirm edit and move to next row (same column)
• Shift+Enter: Insert line break (continue editing)
• Ctrl+Enter / Cmd+Enter: Confirm edit and exit editing mode
• Escape: Confirm changes and exit editing mode
• Tab: Confirm edit and move to next cell
• Ctrl+C / Cmd+C: Copy selected text within cell
• Ctrl+V / Cmd+V: Paste text within cell
• Ctrl+X / Cmd+X: Cut selected text within cell
• Ctrl+A / Cmd+A: Select all text within cell
• Ctrl+Z / Cmd+Z: Undo within cell (Editing mode)
• Ctrl+Y / Cmd+Y or Shift+Ctrl+Z / Shift+Cmd+Z: Redo within cell (Editing mode)

Usage

Opening the Table Editor

• Right-click and select "Open Table Editor"
• Or use the Command Palette (Cmd/Ctrl+Shift+P) and run "Markdown Table Editor: Open Table Editor"
• Use "Open Table Editor (New Panel)" to open in a separate panel (useful for side-by-side comparison)

Theme Settings

• Use "Select Table Editor Theme" to choose a dedicated theme for the editor
• Set markdownTableEditor.theme to inherit to follow the current VS Code theme

Extension Settings

This extension provides the following settings:

• markdownTableEditor.theme: Choose a dedicated theme for the editor. Set to inherit to follow VS Code's current theme

Supported Languages

This extension supports the following languages:

• English
• Japanese (日本語)
• Simplified Chinese (中文（简体字）)

The UI automatically displays in the language set in VS Code.

Known Issues

• Large tables (over 1000 rows) may experience performance degradation
• Complex table formatting may be simplified during editing

Release Notes

For detailed change history, see CHANGELOG.md.