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BUILT FOR LINE GRAPHS<br>Convert line graph images to CSV automatically.<br>DigiPlot is an automatic line graph digitizer for researchers, engineers, students, and analysts. Upload or paste a PNG, JPG, GIF, or WebP image and download a CSV with the numeric data from each plotted line, without clicking points one by one.<br>Digitize a plotSee how it works<br>3 free plots a day · No credit card · CSV download
fig_3_thermal_response.png<br>806040200816243240x 19.5 y 53.3x (s)y (°C)0.030.09.154.019.553.331.872.740.075.35 of 5 points · download CSV
From plot image to usable CSV<br>DigiPlot keeps the workflow focused: upload a line graph, follow its status, and download data that is ready for your analysis tools.<br>Line graphs — supported today<br>Scatter & bar charts — coming soon
01Skip manual point clicking<br>Upload a readable line graph and get rows of numeric data without mapping every point by hand.
02Handle charts with multiple lines<br>A single CSV can include separate columns for each line, using names from the chart legend when they are available.
03See what is processing and ready<br>The signed-in dashboard previews the original image, shows whether each plot is processing, ready, or failed, and keeps downloadable results available for up to 7 days.
04CSV formatted for analysis<br>Each file contains an x column and one column per detected curve, using legend names when they can be read. Open it in Python, R, MATLAB, Excel, or any CSV tool.
Who pulls data with DigiPlot
RESEARCHERS<br>Systematic reviews, faster<br>Extract numeric series from published line-graph figures for evidence reviews, comparison, and meta-analysis workflows.
ENGINEERS<br>Datasheet curves into models<br>Digitize line-based stress-strain, performance, response, and calibration curves when the source data is unavailable.
STUDENTS<br>Textbook graphs you can compute on<br>Turn printed plots into series you can chart, fit, and check yourself.
CONSULTANTS & ANALYSTS<br>Reports and PDFs, machine-readable<br>Turn screenshots of line charts from PDFs, reports, and presentations into CSV data you can compare and model.
Image to CSV with one upload<br>Upload a readable line graph. DigiPlot handles the processing and makes the CSV available when it is ready.
Upload or paste your line graph<br>Use a PNG, JPG, GIF, or WebP image up to 10 MB. When processing finishes, download the plotted values as CSV. Signed-in users can access recent results from the dashboard for up to 7 days.
Line graph digitizer questions<br>Clear answers about supported graphs, file formats, CSV output, and the current dashboard.
What is DigiPlot?DigiPlot is a browser-based automatic line graph digitizer. Upload or paste a graph image and DigiPlot produces a downloadable CSV with numeric values for each plotted line, without requiring manual point-by-point clicking.
Which image and chart types does DigiPlot support?DigiPlot accepts PNG, JPG, GIF, and WebP images up to 10 MB. It is currently designed for line graphs with readable numeric tick labels and linear axes. Scatter plots, bar charts, logarithmic axes, and PDF uploads are not supported today.
What data does DigiPlot export?DigiPlot exports CSV only. The file contains an x column and one column for each line in the graph. When a chart legend is available, its labels can be used as the CSV column names.
What does the DigiPlot dashboard show?The signed-in dashboard previews each original upload, shows whether a plot is processing, ready, or failed, and provides the CSV download when processing finishes. Recent plot results remain available for up to 7 days.
Do I need an account to digitize a graph?No. You can process up to three plots per day without signing up or entering a credit card. A free account adds a dashboard where recent plot results remain available for up to 7 days, and paid credit packs let you process more plots.
Pay per plot, not per month<br>Each credit processes one uploaded line graph. Buy once, use your credits whenever you need them, and avoid another subscription.
Free every day<br>3 plots a day on the house — no account, no credit card.
Try it now
Plus<br>BEST VALUE<br>$19.99one-time<br>250 credits$0.08/credit<br>250 plot extractions<br>CSV download<br>Priority support<br>Credits never expire<br>20% better value<br>Buy Plus
Starter
$9.99one-time<br>100 credits$0.10/credit<br>100 plot extractions<br>CSV download<br>Email support<br>Credits never expire<br>Buy Starter
Pro
$39.99one-time<br>600 credits$0.07/credit<br>600 plot extractions<br>CSV download<br>Priority support<br>Credits never expire<br>35% better value<br>Buy Pro
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Starter
$9.99one-time<br>100 credits$0.10/credit<br>100 plot extractions<br>CSV download<br>Email support<br>Credits never expire<br>Buy Starter
Plus<br>BEST VALUE<br>$19.99one-time<br>250 credits$0.08/credit<br>250 plot extractions<br>CSV download<br>Priority support<br>Credits never expire<br>20% better value<br>Buy Plus
Pro
$39.99one-time<br>600 credits$0.07/credit<br>600 plot extractions<br>CSV download<br>Priority support<br>Credits never expire<br>35% better value<br>Buy Pro
Three free plots a day,...