Which error correction level should I use?

L (7%) for clean digital display, M (15%) for printed materials, Q (25%) for industrial or potentially damaged codes, H (30%) for maximum resilience. Higher correction reduces data capacity — for URLs, M or Q is usually sufficient.

How much data can a QR code hold?

Up to 2,953 bytes (alphanumeric mode) or 4,296 characters (numeric mode). URLs are typically well within this limit. For very long URLs, use a URL shortener first to reduce the QR density and improve scannability.

Générer a QR code for a URL

Créer un scannable QR code ce encodes un URL, avec control sur taille, erreur correction, et formater.

1

QR codes encode data as a 2D matrix scannable by phone cameras. For URLs, the encoded string should be a full URL (with scheme) so scanners open it directly in a browser. Error correction level affects scannability when damaged.
2

Générateur de codes QR →
Enter the URL (include https://). Choose size (pixels), error correction (L/M/Q/H — higher is more robust but denser), and output format (PNG/SVG). The tool renders the QR code for download or embedding.
3

Analyseur d'URL →
Verify the URL is well-formed before encoding — malformed URLs in QR codes lead to scan failures or wrong destinations.

Questions fréquentes

Which error correction level should I use?: L (7%) for clean digital display, M (15%) for printed materials, Q (25%) for industrial or potentially damaged codes, H (30%) for maximum resilience. Higher correction reduces data capacity — for URLs, M or Q is usually sufficient.
How much data can a QR code hold?: Up to 2,953 bytes (alphanumeric mode) or 4,296 characters (numeric mode). URLs are typically well within this limit. For very long URLs, use a URL shortener first to reduce the QR density and improve scannability.