How to use it
- Put dates, months or years in the first column, in time order.
- Each numeric column is one line, such as this year and last.
- Hide markers for dense data and use smooth lines for noisy series.
Data format example
Copying from a spreadsheet gives this format, with tabs between columns:
Month 2025 2026 Jan 3200 4100 Feb 2900 3800
Frequently asked questions
How do I bring in data from Excel?
Select the range including headers in Excel, WPS or Google Sheets, copy and paste it into the data box; tabs are detected automatically, and CSV or comma- or semicolon-separated text works too. Thousands separators, currency symbols and percent signs are removed.
Is there a watermark? Can I put it in PowerPoint?
No watermark. PNG exports at twice the chosen size and SVG is vector, so both stay sharp in PowerPoint, Word or print; you can also copy the image and paste it directly.
Is my data uploaded?
No. Data is parsed and drawn in your browser. A share link carries the data after the # in the URL, which is never sent to the server; only people with the link can see it.
Will a year column be treated as numbers?
No. If the first column holds years between 1900 and 2100, or its header says year, month, date or quarter, it becomes the x-axis labels automatically.