Turns plots into data.

Extract accurate numerical data from graphs, charts, and published figures directly in your browser.

Launch

Free to use. No account required.

Calibrate linear or logarithmic axes using known points from the original plot.

Digitise plots

Import an image of a graph and extract numerical X–Y data simply by clicking points.

Axis calibration
Undo, redo, and edit

Correct mistakes, move or remove points, and experiment without losing your work.

Lock one coordinate while digitising horizontal or vertical data series for faster, more consistent point placement.

Curve tracing

Trace continuous curves quickly without manually placing every individual point.

Coordinate lock
Export your data

Copy or export extracted coordinates for use in Excel, engineering calculations, or other analysis tools. PDF report export option available.

Privacy

Your data stays on your device

GraphX processes your graph and extracted data locally in your browser. Your uploaded images and digitised data are not sent to a server.

No account. No uploads. No tracking of your data.

That wording should, of course, match the eventual implementation precisely. If you add analytics, for example, we'd need to distinguish anonymous site analytics from graph/data processing.