Get numbers out of any chart
Methods, tool comparisons, and worked examples for researchers and analysts who refuse to retype data from a screenshot.
PAGE 5 OF 6
6 min readHow to Extract Data from a Logarithmic Chart
Digitize log-scale charts without arithmetic mistakes. Calibrate at two visible powers of ten, let the tool handle the math, and avoid the three traps that turn a log axis into garbage data.
7 min readHow to Extract Data from a Graph Image
A practical four-step method for digitizing data points from chart images, plus fixes for log axes, multi-series plots, and low-resolution scans.
7 min readWebPlotDigitizer Alternatives: 7 Tools Compared
An honest comparison of seven chart digitizers — including DataFromChart, WebPlotDigitizer, PlotDigitizer, GetData, Engauge, Graph Grabber, and im2graph.
5 min readHow to Extract Data from a Chart in a PDF
Upload the PDF directly, pick the page in the in-app page picker, calibrate the axes, and export. A walkthrough with a real journal-style example and fixes for common problems.