This is the one on this page most likely to be useful to a colleague who never opens a for anything else.
Describe the process. Get a diagram. It comes back as a single self-contained HTML file — inline SVG and CSS, no dependencies — which means it opens in any browser, survives being emailed, and prints without falling apart.
What it covers
Roughly forty types, including the ones that actually come up in bank work: flowcharts, swimlanes, org charts, Gantt, sequence, state machines, ER and data , timelines, layer stacks, dependency graphs, user journeys, Sankey, fishbone, Wardley maps, and the ordinary chart family (bar, line, waterfall, scatter, treemap).
It will also redraw what you already have — hand it a .drawio, Mermaid .mmd or Excalidraw file and ask for it at a different size or level of detail.
Do the brand step once
The first time you run it in a it stops and asks whether to customise the style guide before drawing anything, rather than silently shipping a diagram in its default orange. You can point it at a website and let it pull the palette. Do this once and every later diagram in that project comes out on-brand.
Worth knowing
- It is deliberately opinionated. The author’s stated position is no drop shadows and no Mermaid-default look. If you want the house style of your existing deck, do the brand step.
- Version and scope drift. The ’s own description lists around forty types and the blurb says thirty-eight — the count moves as types are added. Don’t quote a number in a deck; open it and look.
- Not just . The same repo publishes Codex and Copilot installs, if a colleague is on a different tool.
Access
Public — no access request needed. MIT licensed.