Extract data from any chart image with 90%+ accuracy. Powered by Mistral Pixtral Large vision model. AI reads the axes, values, and data points automatically.
The fastest way to get data from chart images
AI understands your chart automatically. No need to manually click each data point like traditional tools.
Powered by Mistral AI's Pixtral Large vision model with 90%+ accuracy on chart extraction.
Run offline with Tesseract OCR. Your data never leaves your computer unless you choose cloud mode.
Works with line charts, scatter plots, and bar charts. Handles both linear and logarithmic scales.
Powerful command-line interface for automation. Process folders of charts with a single command.
Generate overlay images showing detected points. Verify extraction quality at a glance.
Three simple steps to your data
Drop your chart image (PNG, JPG) or use the CLI
Detects axes, reads labels, extracts data points
Get your data as a clean CSV file
How we stack up against alternatives
| Feature | WebPlotDigitizer | PlotDigitizer Pro | Chart2CSV |
|---|---|---|---|
| Extraction Method | Manual point clicking | Semi-automatic | AI automatic |
| Speed | 5-30 min / chart | 2-10 min / chart | Seconds |
| Price | Free | $$ / month | Free & Open Source |
| Offline Mode | ✓ | ✗ | ✓ |
| CLI / API | ✗ | ✗ | ✓ |
| AI OCR | ✗ | ✗ | ✓ (Mistral) |
| Best For | Occasional use | Business users | Developers & Researchers |
Extract data from your chart in seconds
📈 Stock Prices
💰 Sales Data
🔬 Research Data
Line charts, bar charts, scatter plots only