WebPlotDigitizer
im2graph
DataThief III
Silkscientific UN-SCAN-IT
GraphClick
jTechDig
Plot Digitizer
g3data is used for extracting data from graphs.

LabPlot
Plot Digitizer
WebPlotDigitizer
Plotly
DataFromChart
Graph
OriginPro
SmartPlot is bilingual desktop scientific plotting and data analysis software for researchers, covering data import, analysis, publication-ready figures, composition, and export.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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g3data
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|---|---|---|
| Website | frantz.fi | smartplot.app |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
No features have been listed yet.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using g3data and SmartPlot. For example, how are they different and which one is better?
When comparing g3data and SmartPlot, you can also consider the following products.
WebPlotDigitizer - Web based tool to extract numerical data from plots, images and maps.
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LabPlot is a KDE-application for interactive graphing and analysis of scientific data.
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im2graph graph digitizing software to convert graphs to numbers
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All-in-One Tool to Extract Data from Graphs, Plots & Images
Compare Plot Digitizer to g3data or SmartPlot:

DataThief III is a program to extract (reverse engineer) data points from a graph.
Compare DataThief III to g3data or SmartPlot:

Digitizing Software converts graph image files to usable (x,y) data automatically
Compare Silkscientific UN-SCAN-IT to g3data or SmartPlot: