Datafromchart is described as 'Operates as a web-based application, offering users the capability to extract data directly from charts. Designed with analysts and researchers in mind, it facilitates the extraction of estimates from various sources such as industry reports or research papers' and is an website in the education & reference category. There are nine alternatives to Datafromchart, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Self-Hosted apps. The best Datafromchart alternative is WebPlotDigitizer, which is both free and Open Source. Other great sites and apps similar to Datafromchart are Engauge Digitizer, g3data, GraphClick and PlotDigitizer.
A large quantity of published data is available only in the form of plots and it is often difficult to extract numerical data accurately out of these pictures. There are several softwares available to aid this process, but most are either paid or poorly written.
This open source, digitizing software converts an image file showing a graph or map, into numbers. The image file can come from a scanner, digital camera or screenshot. The numbers can be read on the screen, and written or copied to a spreadsheet.
g3data is used for extracting data from graphs. In publications graphs often are included, but the actual data is missing. g3data makes the extracting process much easier.
GraphClick is a graph digitizer shareware for Mac OS X which allows to automatically retrieve the original (x,y)-data from the image of a scanned graphor fom QuickTime movies. Free download. Features automatic detection of solid, dashed or dotted lines, bar charts or symbols.
PlotDigitizer is data extraction software. It allows users to extract data points from graphs, plots, charts, and scanned documents.
Sometimes it is necessary to extract data values from graphs, e.g. in most scientific publications only plots but no data values are published. DigitizeIt makes it easy to actually get back numbers from such a plot!
UN-SCAN-IT graph digitizer converts scanned graphs to real xy data automatically. Extract xy data values from published graphs, old plots, and strip charts.
Graphreader is a simple browser-based tool for extracting numerical values from images of graphs and plots, then exporting the data into CSV files.
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