Plot Digitizer for Mac

Brief summary

Plot Digitizer is a free macOS application that converts scanned graphs and images into numeric data. It simplifies extracting values from charts and figures so researchers, students, and analysts can reuse graphical information without manual transcription.

Core features

• Export extracted datasets in common formats for spreadsheets and analysis tools.
• Overlay a customizable grid and use zoom controls to increase placement accuracy.
• Import images in several popular file types and set calibration points.
• Precisely mark and capture data points by defining axis scales and curve positions.
• Simple, intuitive interface tailored for quick digitization tasks.

Supported file types and output options

• CSV, TSV, and other plain-text table formats for easy import into analysis software.
• Common image inputs such as PNG, JPEG, TIFF, and scanned PDF pages.
• Project or session saves (when available) so you can return to work later.
• Direct clipboard copy or export for quick transfer into spreadsheets.

Who benefits from this tool

Plot Digitizer is useful for:

• Academics recovering data from printed figures or legacy reports.
• Engineers and analysts who need to extract series from images without recreating plots.
• Students and hobbyists converting visual results into analyzable numbers.

Typical workflow

1. Load the image you want to digitize.
2. Define the axes by setting scale reference points and units.
3. Zoom into the region of interest and enable grid guides if needed.
4. Click or trace along the curve to capture individual data points.
5. Review and export the collected data in your preferred format.

Why use it

This utility removes tedious manual entry by turning graphical information into usable datasets quickly. Its straightforward design keeps the learning curve low while offering enough precision for many scientific and practical applications.