Calculator
Your files never leave your device
Check your Network tab and see
Work starts the moment you drop a file
No daily limit, no sign-up, no watermark
Type a mathematical expression and the tool computes the result in the page, honouring operator precedence. It is meant for quick multi-step arithmetic without reaching for a separate app.
The operator and function set is limited. Plotting, symbolic algebra, matrices, and programmable steps are out of scope — it evaluates a value, it does not draw or prove.
That is the promise behind every tool here. Files are read in your browser tab, processed there, and discarded when you close it — never uploaded to our servers.
