ChartGrabber ChartGrabberReports, dashboards, news articles — charts are everywhere, and the data behind them is locked away. ChartGrabber pulls out the real values and hands you a CSV or an Excel file.
| quarter | value |
|---|---|
| Q1 | 50 |
| Q2 | 75 |
| Q3 | 30 |
| Q4 | 87.5 |
Most charts give up their data one way or another. ChartGrabber tries every automatic route — and a chart that is only a picture, you digitize by hand.
Grabs the raw JSON the page fetched to draw its graph — the exact source data, no approximation.
Reads series directly out of Highcharts, Chart.js, ECharts and Plotly instances running on the page.
For plain SVG charts (D3, Recharts), it reads the axis ticks and converts pixels back into values.
A chart that is only a PNG, a canvas or a screenshot? Mark the axes, click the points, get a table.
Copy as TSV for Excel or Google Sheets, or download a real .xlsx workbook with numbers stored as numbers.
Extraction runs locally on the page you are looking at. No page content is sent to any server.
No developer tools, no screenshots, no retyping numbers by hand.
On any page with a chart, click the ChartGrabber icon and press Extract.
Every chart on the page gets highlighted. Click the one you want.
Check the preview table, then copy it to your clipboard or save it as CSV or Excel.
Ten extractions a month are free, forever. Go Pro when you need more.
Payments are processed securely by Gumroad. Licenses activate instantly — paste the key from your email into the extension.
It works on most charts built with common libraries or plain SVG, and on any chart whose data arrives as JSON. Charts drawn as a flat image or on a bare canvas with no library present can't be read exactly — SVG reverse-engineering gives a close approximation where possible.
When the data comes from network JSON or a chart library, yes — those are the original values. SVG reverse-engineering is an approximation and is clearly labelled as such in the preview.
No. Extraction happens locally in your browser. The only network request the extension makes on its own is to Gumroad, to check your license key.
The counter resets on the first day of each month. You can also upgrade to Pro at any time for unlimited extractions.
Each license activates on a limited number of devices. You can deactivate a device from the extension popup and use the key somewhere else.
Yes — that's the whole-page batch in Pro. It walks every chart on the page, extracts each one, and hands you a single Excel workbook with one sheet per chart, named after each chart's heading.
Yes — email us within 14 days of purchase and we'll refund it, no questions asked.