DataThief III VS SmartPlot

Which is more popular?

Based on our record, DataThief III seems to be more popular. It has been mentioned 4 times since March 2021.

Base details

Website, pricing, platforms and company facts side by side.

	DataThief III	SmartPlot
Website	datathief.org	smartplot.app
Pricing	—	Official pricing
Listed in	Data Extraction Data Visualization Maps Development +1	Data Visualization Technical Computing Data Extraction Numerical Computation +1

What each product offers, as listed by its team.

DataThief III 4 features

SmartPlot 0 features

Ease of Use
DataThief III provides a straightforward interface that makes it easy for users to extract data from graphs, even if they have limited technical skills.
Support for Various Graphs
The software can handle a variety of graphs such as line graphs, scatter plots, and bar charts, making it versatile for different data extraction needs.
Interactive Features
DataThief III offers interactive features that allow users to manually adjust data points, ensuring precise data extraction.
Cross-Platform Compatibility
Available for multiple operating systems, including Windows, macOS, and Linux, which allows for broader accessibility.

Possible disadvantages

Limited Output Formats
The software primarily supports output to CSV format, which might require additional work for users who need other formats.
No Advanced Analysis Tools
DataThief III focuses solely on data extraction and does not provide advanced analysis tools, requiring users to use additional software for analysis.
Manual Data Adjustment
While manual adjustment contributes to accuracy, it can be time-consuming if many data points require it.
Older User Interface
The interface might feel outdated compared to more modern software solutions which can affect user experience.

No features have been listed yet.

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

Score bands 0–20 21–40 41–50 51–60 61–100

DataThief III

SmartPlot

84% 84%

16% 16%

66% 66%

34% 34%

100% 100%

0% 0%

100% 100%

Share your experience with using DataThief III and SmartPlot. For example, how are they different and which one is better?

Recommendations tracked on public social media and blogs since March 2021.

DataThief III 4 mentions

SmartPlot 0 mentions

Show HN: Extract Data from Line Chart Image
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
Ask HN: How can I convert any chart image into raw data automatically?
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
[OC] Very High Correlation Between Campaign Spending and Election Results in the United States
Use https://datathief.org/ to convert this chart to a data table if you want to try it. Source: about 4 years ago

Tracking SmartPlot since Oct 2026.

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