Virtual whiteboard for hand-drawn-style diagrams and sketches.
A free online whiteboard for quickly sketching diagrams, flowcharts and wireframes with a hand-drawn look. Boards can be shared with a link and collaborated on in real time.
The core whiteboard is free to use in the browser.
No, sharing a link is enough to collaborate.
Information and links are accurate as of the time of writing and may change. Always verify on the official site. This is an independent guide, not affiliated with the listed services.