Try it with your own history

See what your spreadsheet would unlock.

Stok reads your columns as they are, normalizes them, and reports which forecasts your history can honestly support.

Runs in your browser · nothing is uploaded

Step 1

Choose a file

Choose CSV or XLSXUp to 4 MB and 5,000 rows in this preview

Date order

This preview parses the file on your own device. It is never sent to a server, never stored, and nothing here creates an account or a forecast.

Quality gate

Stok detects your headers, suggests a mapping, and refuses to guess an ambiguous date.