Monodraw
Powerful ASCII art editor designed for the Mac.
Monodraw is a native macOS application for creating ASCII art and text-based diagrams, including flow charts, mind maps, entity-relationship diagrams, and text banners. It addresses the need to represent algorithms, data structures, binary formats, and layouts as plain text that can be embedded in documentation and other text-based contexts, with image export available as an alternative.
The app provides a custom CoreText-based text engine, line and rectangle tools with attachment points, drawing tools (pencil, eraser, bucket fill, picker), shape grouping, alignment guides, focus mode, and keyboard shortcuts. It includes a built-in FIGlet banner generator with bundled fonts, Crow's Foot notation variants for ER diagrams, and a command-line interface that can output JSON in the direct version. Export is supported as plain text, PNG, and SVG.
Monodraw is built for macOS and requires version 11 Big Sur or later, with older versions available for earlier macOS releases. It is offered as a free trial with a paid license, and educational pricing is available on request. The command-line interface is included only in versions purchased directly from the developer's store, not the Mac App Store edition.
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