Skip manual point clicking
Upload a readable line graph and get rows of numeric data without mapping every point by hand.
BUILT FOR LINE GRAPHS
Convert line graph images to CSV automatically.
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.
3 free plots a day · No credit card · CSV download
From plot image to usable CSV
DigiPlot keeps the workflow focused: upload a line graph, follow its status, and download data that is ready for your analysis tools.
- Line graphs — supported today
- Scatter & bar charts — coming soon
Handle charts with multiple lines
A single CSV can include separate columns for each line, using names from the chart legend when they are available.
See what is processing and ready
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.
CSV formatted for analysis
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
Systematic reviews, faster
Extract numeric series from published line-graph figures for evidence reviews, comparison, and meta-analysis workflows.
- ENGINEERS
Datasheet curves into models
Digitize line-based stress-strain, performance, response, and calibration curves when the source data is unavailable.
- STUDENTS
Textbook graphs you can compute on
Turn printed plots into series you can chart, fit, and check yourself.
- CONSULTANTS & ANALYSTS
Reports and PDFs, machine-readable
Turn screenshots of line charts from PDFs, reports, and presentations into CSV data you can compare and model.
Image to CSV with one upload
Upload a readable line graph. DigiPlot handles the processing and makes the CSV available when it is ready.
Upload or paste your line graph
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
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
Each credit processes one uploaded line graph. Buy once, use your credits whenever you need them, and avoid another subscription.
Free every day
3 plots a day on the house — no account, no credit card.
Plus
BEST VALUE$19.99one-time
250 credits$0.08/credit
- 250 plot extractions
- CSV download
- Priority support
- Credits never expire
- 20% better value
Starter
$9.99one-time
100 credits$0.10/credit
- 100 plot extractions
- CSV download
- Email support
- Credits never expire
Pro
$39.99one-time
600 credits$0.07/credit
- 600 plot extractions
- CSV download
- Priority support
- Credits never expire
- 35% better value
Credits never expire · Secure checkout via Stripe
Have a line graph you need as data?
Upload the image and download the plotted values as CSV. Try up to three plots today without an account or credit card.
Digitize a line graphPNG, JPG, GIF, or WebP up to 10 MB.