UN-SCAN-IT is described as 'Graph digitizer converts scanned graphs to real xy data automatically. Extract xy data values from published graphs, old plots, and strip charts' and is an app. There are more than 10 alternatives to UN-SCAN-IT for Windows, Linux, Mac, Web-based and Java. The best UN-SCAN-IT alternative is WebPlotDigitizer, which is both free and Open Source. Other great apps like UN-SCAN-IT are Datafromchart, Engauge Digitizer, Plot Digitizer and g3data.
Take any graph or data from any source (Web or PDF document, for example), add your comments, and perform any manipulations, like nonlinear regression or curve fitting. Then print your results or export them to Excel or other database.
