plotdigitizer
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Description:
Digitize scanned plots of functional data
Type: Cask  |  Latest Version: 2.6.12@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Productivity
Tags: data-extraction visualization scientific-tools analysis java
Install: brew install --cask plotdigitizer
About:
Plot Digitizer is a specialized tool for extracting numerical data from images of graphs and charts. It allows users to map pixel coordinates to real-world data values by defining axes scales and calibrating points. This effectively converts visual data from scientific papers, reports, and scanned documents into usable digital datasets for further analysis.
Key Features:
  • Interactive axis calibration for accurate data mapping
  • Support for linear, logarithmic, and date/time axes
  • Manual and automatic point tracking along data curves
  • Export data to CSV, XML, and other formats
Use Cases:
  • Extracting data from legacy scientific publications for meta-analysis
  • Converting scanned engineering plots into digital datasets
  • Recovering data from images where original source files are unavailable
Alternatives:
  • WebPlotDigitizer – Web-based alternative with similar functionality; Plot Digitizer is a standalone Java application.
  • DigitizeIt – Commercial alternative with a comparable feature set.
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