Side-by-side comparison of two listed Dev Tools — real listing data only, no paid placement.
On record, they differ in: unique tags (ASCIIFlow 4: #ascii #text #html +1 more vs nomnoml 3: #uml #text-to-diagram #syntax); category rank (ASCIIFlow #41 vs nomnoml not in top 50). Same pricing model (Free) and category (Dev Tools). Listing facts only — not a recommendation.
Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html
ASCIIFlow is a web-based tool for creating ASCII diagrams with an infinite canvas. It supports saving directly to Google Drive, allows resizing and freeform drawing, and exports diagrams as plain text or HTML. The tool is designed for quick and simple diagram creation without the need for complex software.
Published 2026-08-13 · Links checked 2026-09-09
Draw sassy UML diagrams from plain syntax
nomnoml is a tool for creating UML diagrams using a simple text syntax. It provides instant visual feedback and allows customization of styles through directives. The tool supports various diagram types including class, component, flow chart, and use case diagrams, along with features like comments, id attributes, and custom classifier styles.
Published 2026-08-13 · Links checked 2026-09-09
| ASCIIFlow | nomnoml | |
|---|---|---|
| Pricing | Free | Free |
| Category | Dev Tools | Dev Tools |
| Rank in Dev Tools | Position #41 of 77 | not in top 50 of 77 |
| Alternatives listed | 2 → | 2 → |
| Shared tags | #diagram | |
| Unique tags | #ascii #text #html #google-drive | #uml #text-to-diagram #syntax |
| Source code | Not detected on official site (checked 2026-09-15) | github.com/skanaar/nomnoml |
| In their own words | — | A tool for drawing sassy UML diagrams based on syntax. Provides instant feedback and has a customizable styling.— official site (homepage description), checked |
| Official website | asciiflow.com | nomnoml.com |
| Site preview | ||
Rank = neutral rotation by listing ID, not a quality score · how it works
ASCIIFlow is Free; nomnoml is Free. Both are listed in Dev Tools on ToolDock.
What they have in common: #diagram
ASCIIFlow is listed as free; nomnoml is listed as free. Pricing label set at listing time; official pricing page linked where verified — see each official website for current details.
Both are Dev Tools listed on ToolDock, and they share the tag diagram.
ToolDock keeps a tag-matched alternatives list for each: see ASCIIFlow alternatives and nomnoml alternatives.