Point your camera at a math problem

What this can and can't do

• — Arithmetic expressions and single-variable linear equations (using "x"), on printed or handwritten text.
• — Freezing a frame captures at higher resolution than the live scan, and skips waiting for repeated matching reads -- useful when lighting or a shaky hand is throwing off the live scan.
• — Handwriting mode is experimental, freeze-only (no live scan), and works best on a single line framed tightly -- it doesn't locate text on its own the way the printed-text engine does.
• — Quadratics and multiple variables are out of scope, and it says so rather than guessing.
• — A lowercase "x" is always read as the variable; use "×" for multiplication.
• — Everything -- the camera feed and OCR -- runs locally in your browser. The handwriting mode downloads its model from a public CDN on first use; nothing you capture is ever uploaded anywhere.