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ConvertBox

Data Chart Generator

Create bar, line, pie, and area charts from CSV or JSON data in your browser, then export polished visuals as PNG or SVG without uploading files.

📊

Upload Data File

Upload a CSV or JSON file to create charts

Max file size: 50MB

or drag and drop · press Enter to browse

How to Use

  1. Upload a CSV or JSON file with your data
  2. Select the chart type (bar, line, pie, donut, or scatter)
  3. Choose X and Y axis columns
  4. Customize the chart title
  5. Download your chart as PNG or SVG

All processing is done in your browser, and files are never sent to a server.

Frequently Asked Questions

CSV and JSON files are supported. CSV files should have headers in the first row.
No, all chart generation happens in your browser. Your data stays private.
The tool uses a carefully selected color palette. Custom color selection will be added in a future update.
Bar, Line, Pie, Donut, and Scatter charts are currently available.
Yes, charts can be downloaded as PNG (for web/documents) or SVG (for high-quality printing).
Yes, charts are responsive and render well on mobile devices.
The tool is completely free with no usage limits. However, since processing occurs in your browser's memory, we recommend keeping file sizes under 50MB (especially for heavy files like PDFs or videos) to ensure stability.
No. All tools on ConvertBox are 100% free. We do not insert watermarks, limit features, or require any registration or payment.
Yes. Once the page and its local library dependencies are loaded in your browser, the conversion logic runs completely offline without needing an active internet connection.

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