AsciiSketch

What it does

AsciiSketch is a browser-based editor for creating ASCII art and text-based diagrams. Users can draw on a canvas by selecting elements like text, lines, and boxes. The tool offers multiple ASCII character sets and fonts—including Standard, Banner, Big Block, Bubble, Digital, and others. Lines can be styled with different stroke types (single, double, heavy, rounded, blended) and endpoints (arrows, triangles, diamonds, circles). Shapes support customizable borders, fill characters, and padding. Work can be saved, loaded, exported as plain text, downloaded as a .txt file, or copied to the clipboard.

Who it is for

The editor targets developers and documentation writers who need to create diagrams, flowcharts, or visual content using only text characters. This is useful for terminal-based workflows, code comments, README files, and ASCII art projects. The tool suits people who want to avoid external image files or maintain a text-only aesthetic in technical documentation.

Pricing

The site does not show prices.

How it stands out

AsciiSketch runs entirely in the browser with no apparent account or download required. The interface exposes a full range of ASCII styling options—font families, border styles, fill characters, line types, and arrow variants—that would otherwise require manual character entry. The raw edit mode suggests flexibility for users who want to hand-code ASCII alongside the visual editor. The ability to save and load drawings locally, combined with text export and clipboard copy, makes it practical for workflows where ASCII output is the final product.

What a founder should check

A competitor should investigate whether existing tools already cover this space. Diagram-as-code platforms like Mermaid, PlantUML, and Graphviz serve similar users but generate polished graphics, not ASCII. Dedicated ASCII art editors exist (some decades old), though browser-based versions with modern UX are less common. A founder should verify whether customers prefer ASCII output over standard diagrams and whether they would pay for convenience features like templates, collaboration, or export to other formats. Finally, assess the switching cost: if users are already comfortable hand-coding ASCII in a text editor, they may need compelling reasons—like speed or discoverability of features—to adopt a dedicated tool.