UN/CHART Chart to data, version 1 Local only, nothing uploaded Source

Get the numbers back out of a chart.

Paste a screenshot and get the numbers back. Unchart reads the axes, traces every line, bar and dot, and tells you when a chart is built to mislead. About a second, right in your browser.

⌘V or Ctrl V to pasteDrop an image or PDFDrag a box to read part of it

01Input

Try

EXAMPLE · MADE UP DATA

Move over the chart to measure any pointDrag a point to fix it, or drag empty space to read part of the image

Read labels

Fit axes

Trace data

Check honesty

02Output

ChartLine

Series2

Points20

Y axis2 to 12

Fix anything by clicking a number or name here, or by dragging the point on the chart.

01 ReadRead the labels

It spots the glyphs itself and reads them in one pass, so tiny tick numbers and gray text still come through.

02 FitFit the axes

A fit that ignores outliers lines up the tick values, skips misreads, and catches log axes and lost minus signs.

03 TraceTrace the data

Each color is a series. Lines snap back to their real data points. Bars and dots get measured.

04 CheckCheck the chart

Bars that skip zero, two y axes, log scales and zoomed axes, with what each does to your read.

Charts tested130

Worst error on any chart0.9%

Median error0.17%

Skipped zero axes caught10 of 10

Time per chart~1 s