WebPlotDigitizer icon
WebPlotDigitizer icon

WebPlotDigitizer

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.

WebPlotDigitizer screenshot 1

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WebPlotDigitizer screenshot 1
WebPlotDigitizer screenshot 2
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  •  3,160 Stars
  •  436 Forks
  •  104 Open Issues
  •   Updated  
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Our users have written 2 comments and reviews about WebPlotDigitizer, and it has gotten 12 likes

WebPlotDigitizer was added to AlternativeTo by endolith on and this page was last updated .

Comments and Reviews

   
Top Positive Comment
sozen
0

So simple to use and effective.

endolith
0
  • Works pretty well with a clean plot
  • Not fully automatic. Import the image, pick some points, paint the area to search for the line, and it will extract the points
  • supports log scale
  • 4 axis points = presumably doesn’t work with warped plots
  • seems to find the actual position of the points better than other solutions
  • but it can produce lots of spurious points from gridlines, which need to be removed by hand

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What is WebPlotDigitizer?

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. Also, most of the existing programs require Microsoft Windows to work and support only 2D X-Y plots. Due to these limitations WebPlotDigitizer has been developed to facilitate easy and accurate data extraction from a variety of plot types and also maps. This program is built using HTML5 which allows it to run within a browser and requires no installation on to the user’s hard drive.