How to use Online Whiteboard
An infinite board for sketching ideas, brainstorming with sticky notes and explaining things with arrows — on a phone, tablet or computer.
- Pick the pen, sticky note or a shape from the tool bar.
- Draw or click on the board; double-click any object to type.
- Drag with two fingers or Space to pan, pinch or Ctrl + wheel to zoom.
- Export a PNG, SVG or PDF, or save the project file to continue later.
Questions
Can I use it on a tablet with a stylus?
Yes. Pen and highlighter follow your stylus or finger, two fingers pan and pinch zooms.
How does collaboration work?
Choose Collaborate to create a private room or join by invitation code. Approved room members share drawings and referenced images directly through WebRTC. The server only establishes connections. Keep the tabs open; restrictive networks can block direct connections without a TURN relay.
Is my original board preserved?
Joining first saves a separate local project, then starts a recovery copy for the room document. Both local copies have no automatic expiry. Exports stay available when you leave.
How are concurrent edits handled?
Independent object properties merge. When two people change the same property, the latest certified room operation wins. Deleted identities stay deleted. This is an online coordination model, not offline multi-master synchronization. The room owner can make participants viewers.
What are the board limits?
Public room state has a 60 KB replication budget. Shared images use bounded transfer chunks with a 4 MiB per-image and 32 MiB referenced-image budget. Larger local boards can still be edited and exported without sharing.
Are there keyboard shortcuts?
Yes: V select, H pan, Ctrl+Z / Ctrl+Shift+Z undo and redo, Ctrl+C / Ctrl+V copy and paste, Ctrl+D duplicate, Delete removes, arrow keys nudge (Shift for 10 px), + and − zoom and 0 fits the view.