Coupon Discount QR Code
TL;DR: Run limited-time promotions scannable at checkout.
Generate QR code
About this use case
Run limited-time promotions scannable at checkout.
Category: marketing. Generate trackable, high-resolution QR codes via API with custom colors, error correction, and SVG/PNG output.
Print size guide
| Distance | Min size |
|---|---|
| Handheld (15cm) | 2×2 cm |
| Poster (1m) | 15×15 cm |
| Billboard (5m) | 50×50 cm |
API example
curl -X POST https://useforgekit.dev/api/v1/qr \
-H "Authorization: Bearer fk_live_..." \
-d '{"data": "SAVE20-FEB2026", "size": 512}'Best practices
- Use high error correction (level H) for print materials
- Test scan distance before bulk printing
- Include a short URL redirect for analytics tracking
- Ensure sufficient contrast between foreground and background