Uboard
Local-first · Infinite blackboard
Uboard is a local-first infinite blackboard for sketching ideas,
exploring thoughts, and organizing visually
without accounts, sync,
or cloud dependencies.
Fully offline · Java Swing · Open source (MIT)
Pan and zoom smoothly across an unbounded space using world-space coordinates.
Freehand drawing, shapes, text, eraser, and selection — everything you need to think visually.
No telemetry, no sync, no servers. Your boards live entirely on your machine.
Uboard is for people who think spatially. It stays out of your way, launches instantly, and gives you a calm, private space to work through ideas visually.
MIT licensed. Inspect, modify, extend.
Works without internet access.