Make a chart from CSV or Excel
Open CSV, TSV, JSON, JSONL or an Excel workbook. The studio detects numeric, date and category columns, suggests practical visualizations and lets you change filters, grouping, order and aggregation. Every chart is rendered with open-source Apache ECharts, locally on your device.
Try ready-made examples
Choose Business sales to compare monthly channel revenue, Monthly expenses to plot a household budget, Survey results to compare answers across regions or Public statistics to inspect municipality-level counts. These demonstration datasets are synthetic, not official statistics.
Create a reusable dashboard
Add up to eight charts, choose different data dimensions for each and export individual graphics as PNG or scalable SVG. Save the dashboard configuration as JSON and restore it with the same dataset. Exported JSON does not contain the uploaded data.
Frequently asked questions
Is this CSV chart maker free?
Yes. No registration or paid API is needed, and files are not sent to a server.
Why are some rows missing from my chart?
The preview is shortened, and charts cap categories and series to keep the interface responsive. Invalid numeric values are skipped for numeric aggregation. Import files are limited to 12 MB and 20,000 rows.
Can I build a dashboard from an Excel file?
Yes, XLSX files are supported. Select a worksheet and choose numeric or categorical columns. Legacy XLS is not supported.
Frequently asked questions
Is this tool free?
Yes. The core tool is free to use in your browser.