
g3data
WebPlotDigitizer
im2graph
Silkscientific UN-SCAN-IT
GraphClick
jTechDig
Plot Digitizer
DataThief III is a program to extract (reverse engineer) data points from a graph.

Which is more popular?
Based on our record, DataThief III seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | datathief.org | workloo.com |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DataThief III and WorkLoo. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Glad to see some work in this space. While I was doing my PhD all I had was https://datathief.org/, which usually did the job, but had some limitations and was Java-based. - Source: Hacker News / over 2 years ago
I don’t know if this is still up-to-date, but a decade ago I used to use this tool in cases where I couldn’t access numbers behind published graphs: https://datathief.org/. - Source: Hacker News / almost 4 years ago
Use https://datathief.org/ to convert this chart to a data table if you want to try it. Source: about 4 years ago
Tracking WorkLoo since Oct 2026.
When comparing DataThief III and WorkLoo, you can also consider the following products.
WebPlotDigitizer - Web based tool to extract numerical data from plots, images and maps.
Compare WebPlotDigitizer to DataThief III or WorkLoo:

im2graph graph digitizing software to convert graphs to numbers
Compare im2graph to DataThief III or WorkLoo:

Digitizing Software converts graph image files to usable (x,y) data automatically
Compare Silkscientific UN-SCAN-IT to DataThief III or WorkLoo:

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.
Compare GraphClick to DataThief III or WorkLoo:
Software tool written in Java for digitizing data from an image of graph or plot.
Compare jTechDig to DataThief III or WorkLoo: