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.

Or paste table text
Import a file to get started. Everything runs locally.

How it works

  1. 1.Import a table with a time column and a value column (Excel, CSV, TSV or JSON, or paste).
  2. 2.Pick those two columns, how to group the dates (day, week, month, quarter, year) and how to aggregate each group.
  3. 3.Choose the method (linear trend, Holt smoothing or moving average), how many periods to forecast and an optional seasonal cycle.
  4. 4.Press Run the forecast: the trend, the change per period and the backtest error come with it — export as CSV or Excel.

Frequently asked questions

Do I get free credits to try Trend Forecast?
Yes — new accounts get 3 free credits to spend on any tool, Trend Forecast included. After that you only pay for what you run.
How many credits does Trend Forecast cost?
Everything runs in your browser and nothing is uploaded: free accounts pay 1 credit per run, and Pro or Pro+ members run it as often as they like.
Is the content I paste private?
Trend Forecast uses your input only to generate the result. Stored results are deleted automatically by our retention policy, and you can remove any run from your history.
Do I need to install anything?
No. Trend Forecast works in any modern browser — nothing to download or install.