Paste Mermaid, get an editable diagram on a collaborative canvas

Paste a Mermaid flowchart below, see it live, and open it as an editable canvas in one click. Planloom builds real shapes and bound arrows on the canvas. Edit them like any other shapes, then export the diagram back to Mermaid for your docs.

Try it now

Flowcharts are supported today. Anything unsupported is skipped and listed. Need a starting point? Browse starter diagrams on GitHub.

Live preview

Rendering preview…

Free. No account. Saved in this browser.

What you get

Real shapes, not an image

Restyle, rearrange and annotate imported diagrams, then collaborate on them live.

Round-trip to Mermaid

Keep diagram-as-code in your repo and still edit visually when it helps.

Playback

Reveal a diagram node by node to walk a team through a flow.

Honest about limits

Flowcharts are supported today. Anything unsupported is skipped and listed, never silently dropped.

How it works

  1. 1Open the Mermaid panel on any canvas.
  2. 2Paste your flowchart source.
  3. 3Edit the result, then play it back or export it.

Questions

Which Mermaid diagrams does it support?

Flowcharts today. Other diagram types are not imported yet.

Is it free?

You can open a canvas without an account. Check the pricing page for plan limits.

Plan software visually. Ship it from GitHub.

Open a canvas in seconds. No account, no credit card.