Chart data extraction guides
Methods, tool comparisons, and worked examples for extracting chart data and exporting clean CSV or Excel.
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7 min readExtract Data from a Scatter Plot (Including Dense Ones)
Click each dot for sparse scatter plots; use color-based auto-extraction for dense ones. The cutoff is roughly 50 points. Worked example on a 200-point three-cluster genomics scatter.
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.