In-browser · Private · CSV-friendly
Start with a blank canvas, open or save CSV files instantly, and build formulas without leaving your browser. The first row stays frozen so your column labels are always visible.
All processing happens locally for privacy and snappy performance.
Just type =SUM, =AVERAGE, =MAX, =MIN, =IF, or =CONCATENATE directly to use familiar functions.
The top row stays frozen so you can keep your headers in view while you scroll.
Click, drag, sort, and move between cells with mouse and keyboard controls that feel light and responsive.