ASCII Flow Diagram Designer
Draw flowcharts, boxes, arrows, and text using plain text characters (ASCII) directly in your web browser.
Controls: Select a tool. Click and drag on the grid to draw boxes/lines. Click to insert text and start typing.
How does this tool work?
An interactive text-grid editor for creating ASCII art diagrams.
The tool manages a customizable grid of monospace cells. A JavaScript drawing engine manipulates a 2D character array upon mouse actions (e.g. line connections or box creation using '+', '-' and '|' characters). The finished diagram can be exported directly as raw text.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.