Math scratchpad
An online scratchpad for working through math
TempCanvas provides open space for calculations and visual reasoning when a text box is too rigid and a full note-taking app is unnecessary.
Write calculations your way
Use freehand input for equations, symbols, number lines, rough graphs, and annotations. A stylus or touch screen can make handwriting more natural.
Add structure when useful
Text and simple shapes can organize a calculation, highlight a result, or frame parts of a diagram.
Private browser-local working
The current canvas is stored locally for recovery and is not uploaded as a cloud document. Export a PNG if you need to retain the work.