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Turns a sentence, screenshot or PDF into an editable flowchart, ERD or UML diagram
ChatFlowchart builds diagrams from plain text and also runs the other direction, reading a screenshot or a photo of a whiteboard and rebuilding it as something you can edit. It covers around ten diagram families — flowcharts, UML sequence and class diagrams, ERDs, state machines, Gantt charts, Venn diagrams, Hasse diagrams and probability trees — and exports to PNG, SVG, PDF, Mermaid code, Draw.io or Excalidraw, or a share link. You can generate a first chart without signing up; the free tier watermarks PNG output and caps generations. Pro is $15.90 a month or $99.90 a year, with a $19.90 30-day pass that does not auto-renew and a $9.90 pack of 10 non-expiring credits for occasional use. Payments run through Paddle and PayPal, and no company is named on the site.
Pro is $15.90/month or $99.90/year (quoted as $8.33/month). A $19.90 one-time 30-day pass gives full Pro access without auto-renewal, and a $9.90 pack buys 10 extra generations that never expire. The free tier allows limited generations with a watermarked PNG export.
Use tool ↗The screenshot-to-editable-diagram direction is the part worth showing up for — most text-to-diagram tools only go one way. Export into Mermaid, Draw.io and Excalidraw means you are not trapped if you stop paying, and the 30-day pass is an honest option for someone with one deck to build. The vendor is completely anonymous, which is the usual caveat.
Watch out: The terms-of-service and privacy pages return effectively empty documents to anything but a full browser, so there is little to read before you hand it your diagrams.
Side-by-side fact sheets against the competitors our research names — pricing, platforms, API and both verdicts on one page.
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