A Kanban board is a visual workflow management tool that helps you track tasks through different stages. It uses columns (like "To Do", "In Progress", "Done") and cards (individual tasks) that move across columns as work progresses. This method originated from Toyota's lean manufacturing system and is now widely used in software development, project management, and personal productivity.

Yes, your data is automatically saved — but only on your device. This tool uses your browser's Local Storage to persist all columns and cards. No data is ever sent to any server. This means your information stays private and secure. However, clearing your browser data will remove your boards. We recommend regularly exporting your data (use the Export button) as a backup JSON file.

You have two options: 1) Drag & Drop — Simply grab a card by its drag handle (⋮⋮ icon) or anywhere on the card, then drag it to another column. On desktop, this is the fastest method. 2) Arrow Buttons — Use the small left/right arrow buttons (← →) on each card to move it between adjacent columns. This is especially useful on mobile devices where drag-and-drop may not be supported.

Absolutely! Each card has a colored strip on its left edge. Click the color strip to cycle through 7 color options: gray (default), red, orange, yellow, green, blue, and purple. Use colors to categorize tasks by priority, type, or any system that works for you. The color is saved automatically with your board data.

Double-click any card's text or column title to edit it inline. Press Enter to save your changes, or Esc to cancel. For cards, you can write multiple lines — the text area will auto-resize. All changes are saved instantly to your local storage.

Importing a JSON file will replace all current board data with the contents of the file. A confirmation dialog will appear before the import proceeds. The JSON file must be in the correct format (previously exported from this tool). This is a great way to restore a backup, share boards between devices, or collaborate with teammates.

Yes, fully! This is a client-side tool that runs entirely in your browser. Once the page loads, no internet connection is required. All data is stored locally using the Web Storage API (localStorage). You can add, edit, move, and delete cards and columns while completely offline.

1) Limit WIP (Work In Progress): Don't overload your "In Progress" column — aim for 3-5 tasks max.
2) Keep cards granular: Break large tasks into smaller, actionable cards.
3) Update regularly: Move cards as work progresses to keep the board accurate.
4) Use colors strategically: Color-code by priority, project, or task type for quick visual scanning.
5) Review & refine: Periodically review your board to remove stale cards and optimize your workflow.

There is no hard limit — you can create as many columns and cards as you need. However, since data is stored in your browser's localStorage (typically 5-10MB per domain), extremely large boards with thousands of cards may eventually hit storage limits. For most personal and team use cases, this is more than sufficient.