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A web based tool to extract numerical data from plot images. Supports XY, Polar, Ternary diagrams and Maps. This is an opensource tool that is used by thousands and cited in many published articles. Checkout for more details.

WebPlotDigitizer Screenshot


To report issues, use GitHub Issues. For other queries, contact Ankit Rohatgi


WebPlotDigitizer is distributed under GNU AGPL v3.

Stable Versions

The master branch in this repository is unstable and not recommended to be used in production. To access stable releases, check out:


To contribute to WebPlotDigitizer, please refer to the developer guidelines.