What it is

Open-source virtual whiteboard with a deliberately hand-drawn look. The free web app gives the full editor, one infinite scene, unlimited live collaborators, end-to-end encrypted sessions and local-first autosave, plus PNG and SVG export. It also ships as an embeddable React component.

Why it earns a slot

The lowest-friction way to sketch an architecture diagram or user flow and drop it into a README. The sketchy aesthetic signals draft, so nobody mistakes a five-minute box diagram for a finished spec.

Know before you commit

Free scenes live in browser storage, not an account — clearing site data or switching machines loses them unless you export the .excalidraw file or pay for Excalidraw+.

Getting started

npm i @excalidraw/excalidraw

Field notes

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Pricing snapshot

Free and MIT-licensed · Excalidraw+ $6/user/mo billed yearly ($7 monthly)

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Drop into your Lovable chat

Evaluate Excalidraw (https://excalidraw.com) for this project, then use it only if it fits what we are already building.
Context: Hand-drawn style whiteboard. Open-source virtual whiteboard with a deliberately hand-drawn look. The free web app gives the full editor, one infinite scene, unlimited live collaborators, end-to-end encrypted sessions and local-first autosave, plus PNG and SVG export. It also ships as an embeddable React component.
Reviewer notes (general, not written for this codebase): The lowest-friction way to sketch an architecture diagram or user flow and drop it into a README. The sketchy aesthetic signals draft, so nobody mistakes a five-minute box diagram for a finished spec.
Watch out for: Free scenes live in browser storage, not an account — clearing site data or switching machines loses them unless you export the .excalidraw file or pay for Excalidraw+.
Pricing: Free and MIT-licensed · Excalidraw+ $6/user/mo billed yearly ($7 monthly)
Setup: npm i @excalidraw/excalidraw
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

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