Online Line Chart Generator
LineTrendChart.jsSVG
Generate line charts instantly from label,value lines or CSV with header, smooth curves, point markers, Chart.js config export and SVG download, all local processing.
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How to Use
- Edit categories and values in the data editor
- The chart redraws in real time
- Export as PNG or copy the chart configuration
- Charts render locally from your data — nothing leaves your device
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FAQ
How to input data?
One line per label,value like Jan,100; supports header CSV like label,value or Month,Sales,Profit for multi-series auto detection; also JSON.
How to generate and export?
Click Generate to preview SVG and Chart.js config JSON, copy config, copy SVG or download SVG; Canvas auto enables if chart.js installed.
Which formats are supported?
CSV (comma/semicolon/tab), quoted fields, JSON arrays/objects, numbers auto parsed, invalid lines flagged.
Will my data be uploaded?
No, all parsing, config generation and SVG rendering run locally, no upload.