QR Code Generator
Create custom QR codes instantly. Free, no signup, unlimited.
Enter any website URL. The QR code will open this link when scanned.
Customization
What Is a QR Code?
A QR (Quick Response) code is a two-dimensional barcode that stores data in a matrix of black and white squares. Invented by Denso Wave in 1994, QR codes can encode URLs, text, contact information, WiFi credentials, and more. They are scanned using smartphone cameras or dedicated barcode readers. Unlike traditional barcodes, QR codes can store significantly more data (up to 4,296 alphanumeric characters) and include built-in error correction so they remain scannable even when partially damaged.
QR Code Size Guide
Error Correction Explained
QR codes use Reed-Solomon error correction to remain scannable even when damaged. Higher levels increase the code's density but improve reliability. Choose based on your use case:
| Level | Recovery | Best For | Trade-off |
|---|---|---|---|
| L (Low) | ~7% | Clean digital environments | Smallest QR code size |
| M (Medium) | ~15% | General printing, packaging | Good balance of size & durability |
| Q (Quartile) | ~25% | Labels, outdoor signage | Handles dirt and minor damage |
| H (High) | ~30% | Logos, harsh environments | Largest code size, most resilient |
Frequently Asked Questions
Is this QR code generator really free?
Yes, 100% free with no limits. Generate as many QR codes as you need with full customization — custom colors, sizes, and error correction. No signup, no watermarks, no hidden fees.
Can I use these QR codes commercially?
Absolutely. All QR codes you generate are yours to use however you want — business cards, product packaging, marketing materials, restaurant menus, event tickets. No attribution required.
How many QR codes can I generate?
Unlimited. There are no daily, weekly, or monthly limits. Generate one or generate a thousand — the tool works the same every time. We also support bulk generation if you need to create multiple QR codes at once.
What size should I use for my QR code?
For business cards, 128-200px is sufficient. For flyers or posters viewed up close, 300-400px works well. For large banners or billboards, use 512-1024px. Always test by scanning at the intended viewing distance. Use higher error correction (Q or H) for printed materials.
What is error correction and which level should I use?
Error correction lets a QR code remain scannable even when partially damaged or obscured. Level L (7%) is fine for digital use. Level M (15%) is good for general printing. Level Q (25%) is recommended for labels or stickers that might get scratched. Level H (30%) is best for logos overlaid on the QR code or harsh environments.
Need marketing tools to go with your QR codes?
Compare the best email marketing, CRM, and design platforms side by side.
Compare Email Marketing Platforms →Last updated: . All QR codes are free for commercial use.