Apps similar to Engauge Digitizer include WebPlotDigitizer, which is free and open source. Other options are DataFromChart, Plot Digitizer, g3data and PlotDigitizer. You can choose from more than 10 Academic Research Tools like Engauge Digitizer for Windows, Linux, Mac, the web and self-hosting.
Advanced georeferencing, digitizing, coordinate conversion, and mapping features at an affordable price. This is the ultimate geoprocessing and data conversion tool for map makers, cartographers, geologist, oil and gas professional, or GIS analyst.
Graphreader is a simple browser-based tool for extracting numerical values from images of graphs and plots, then exporting the data into CSV files.
im2graph is a free digitizing software that converts graph-images to graph-data, that is to numbers.
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