Observed arrival · 2026-11-12
Stormtoplan: a diagram editor with a loss ledger
A browser-based editor for writing, viewing, converting, and exporting diagrams in Mermaid, PlantUML, Graphviz, SysML v2, and draw.io formats.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People writing technical diagrams in text formats
- Worth noticing
- When converting formats, it lists each uncarried line with its number and reason, and says switching back restores the original text.
Field notes
The page describes a browser-side workflow and says its Content Security Policy blocks outgoing connections; it also advises loading each format once before disconnecting. Its conversion example names specific losses, including PlantUML styling and separators that Mermaid does not support. For draw.io, the page says the preview simplifies some content: images and exotic shape libraries are approximated.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue