Whiteboard for specs & diagrams

Draw what you mean.Build what you drew.

Skip the wall of text. Sketch flows, map ideas, and share a picture everyone can agree on—no design degree required.

Excaflow canvas preview

A little structure, a lot less confusion

When words run out, a canvas usually helps.

Clarify the messy bits

Map architecture, flows, or UI in minutes. Get the idea out of your head before you argue about it in chat.

Hand context to your tools

Turn sketches into a shared reference—so assistants and teammates aren’t guessing from half a prompt.

Iterate without shame

Redraw, duplicate, tweak. Versioning is a feature, not a failure—your spec can grow with the project.

Pricing that stays out of your way

Try free, upgrade when you’re in it every day.

Free

$0/month

Organize a few projects and rooms—upgrade when you need more.

  • Up to 5 projects
  • Up to 5 rooms per project
  • AI diagram generation: 15/month (UTC)
  • Cloud sync
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Pro

$5/month

Higher AI quota than Free, unlimited projects and rooms, same cloud sync—built for daily, team-heavy use.

  • Unlimited projects
  • Unlimited rooms per project
  • AI diagram generation: 500/month (UTC)

Want to try it with a real idea?

Open a board, doodle once, and see if it feels lighter than another long message thread.

Start for free