Get numbers out of any chart
Methods, tool comparisons, and worked examples for researchers and analysts who refuse to retype data from a screenshot.
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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 method for extracting data from a graph image, including axis calibration, point collection, verification, and difficult chart cases.
8 min readWebPlotDigitizer Alternatives: 9 Tools Compared
Compare nine WebPlotDigitizer alternatives by platform, chart support, extraction method, privacy, and export formats.
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.