QuickChart

Self-hosted chart image generation API powered by Chart.js. Generate chart images via URL parameters or POST requests — perfect for embedding in emails, Slack messages, reports, and documentation.

What You Can Do After Deployment

1. Open your domain — the QuickChart sandbox page loads for interactive testing
2. Generate charts via URL — append a Chart.js config as a query parameter to get a PNG image
3. POST chart configs — send JSON payloads for complex charts with full Chart.js options
4. Choose output format — PNG, SVG, PDF, or base64-encoded responses
5. QR codes — generate QR code images via the /qr endpoint

Use Cases

• Embedding charts in emails and Slack notifications
• Automated reporting and dashboards
• Static chart images for documentation and READMEs
• QR code generation
• Server-side chart rendering without a browser

License

AGPL-3.0 — GitHub