Trend Forecast

Turn a date column into a forecast: pick a period, choose a method, and see the next periods with a backtest error you can judge. Nothing is uploaded.

Your data never leaves this browser

The file is parsed, previewed and charted on your own device. Nothing is uploaded — not even a sample. Close the tab and the data is gone.

Drop a file here, or click to chooseExcel (.xlsx), CSV, TSV or JSON

Or paste table text

Import a file to get started. Everything runs locally.

How it works

1.Import an Excel, CSV, TSV or JSON file, or paste the table. It is parsed on your own device.
2.Pick the columns to show: one category axis and up to three values.
3.Generate once, then keep tweaking — chart type, aggregation, sorting and theme update instantly.
4.Download an image, or publish the result as an encrypted link that expires on its own.