When only a picture of a graph survives, this turns it back into numbers.
How to use the Plot Digitizer (Graph to Data) tool
- Pick the file for Plot Digitizer (Graph to Data); anything in PNG, JPG, WebP is read.
- Mark two known points on each axis, then pick the data points.
- When it looks right, save the file Plot Digitizer (Graph to Data) has made.
Tips for the best result
- Zoom in when clicking axis points; calibration sets the accuracy.
- Tell the tool if an axis is logarithmic.
Quick facts
| Price | Free |
|---|---|
| Works with | PNG, JPG, WebP |
| Where it runs | In your browser, on your device |
| Account | Not needed |