Mermaid / Diagram Preview
Diagrams are developer artifacts. Mermaid / Diagram Preview renders common flowchart and sequence snippets into a local SVG with a cockpit-like visual style, without executing arbitrary Mermaid plugins.
Renders a safe Mermaid-inspired subset locally: common flowchart arrows and sequence messages. Full Mermaid syntax is intentionally not executed.
diagram.mmd
diagram.svg5 nodes · 4 edges
runtime
Browser-local execution
Inputs stay inside the current tab unless you copy, download or explicitly export.
memory
Session handoff
Magic Paste can pass input to a target tool through sessionStorage, never through the URL.
control
User-owned state
Favorites, recent tools and workflow history are local browser data you can clear from the browser.
smart handoff graph
session handoff readySuggested next moves
/text
Markdown Preview
Preview Markdown and copy safe HTML for docs, changelogs and product notes.
/media
SVG Studio
Preview, sanitize, minify and convert SVG assets into Data URI or JSX snippets.
/gen
Recipe Gallery
Curated local workflow recipes for repeatable developer transformations.
/web
Workflow Builder
Chain JSON, JWT, Base64, URL, HTML, text and hash operations in one local recipe.
sponsor
Sponsor this toolFixed native slots for developer products. No third-party tracking, no popups, no layout shift.
01
How to use
- 01Paste flowchart or sequenceDiagram source.
- 02Preview the generated SVG.
- 03Copy the source or SVG for docs.
02
FAQ
- Is this full Mermaid?
- No. It supports a safe local subset for common flowchart arrows and sequence messages.
03
Related tools
- /text→Markdown PreviewPreview Markdown and copy safe HTML for docs, changelogs and product notes.
- /media→SVG StudioPreview, sanitize, minify and convert SVG assets into Data URI or JSX snippets.
- /gen→Recipe GalleryCurated local workflow recipes for repeatable developer transformations.
- /web→Workflow BuilderChain JSON, JWT, Base64, URL, HTML, text and hash operations in one local recipe.