What error correction levels are available?

Levels L, M, Q, and H correspond to roughly 7%, 15%, 25%, and 30% recovery capacity. Higher levels produce larger codes but tolerate more damage.

Can I decode a QR code from an image?

Yes. Drop or pick an image file and the tool decodes the embedded text locally using jsQR. PNG, JPEG, and BMP are supported.

What is the maximum data capacity?

Capacity depends on version (1-40) and error correction level. Version 40 with level L holds up to 2,953 bytes of 8-bit data. URLs up to ~2,000 characters are safe.

Which character sets are supported?

UTF-8 text is encoded directly. Numeric mode is more efficient for pure digits; alphanumeric mode for uppercase letters and a few symbols. The tool auto-selects the best mode.

What image formats can I download?

PNG (default, lossless). The generated QR code can be embedded in documents, printed, or shared. SVG is not currently supported.

Is my data uploaded anywhere?

No. Both encoding and decoding happen entirely in your browser. The text you encode never leaves your device.

Générateur de codes QR

Generate QR codes from text or decode QR codes from images. Gratuit, privé et 100% côté client.

TailleCorrection d'erreurs

Entrée

Essayer un exemple:

Sortie

Local only

Historique récent

Aucun historique

Utilisation

Enter the text to encode.
Choose size and error correction level.
Download the QR code as PNG, or drop an image to decode.

Tâches utilisant cet outil

Générer QR codes for URLs and data

QR codes coder données en un 2D barcode scannable par cameras. Apprendre erreur correction levels, capacity limits, et best practices.

TÂCHE

Générer a QR code for a URL

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

TÂCHE

Questions fréquentes

What error correction levels are available?: Levels L, M, Q, and H correspond to roughly 7%, 15%, 25%, and 30% recovery capacity. Higher levels produce larger codes but tolerate more damage.
Can I decode a QR code from an image?: Yes. Drop or pick an image file and the tool decodes the embedded text locally using jsQR. PNG, JPEG, and BMP are supported.
What is the maximum data capacity?: Capacity depends on version (1-40) and error correction level. Version 40 with level L holds up to 2,953 bytes of 8-bit data. URLs up to ~2,000 characters are safe.
Which character sets are supported?: UTF-8 text is encoded directly. Numeric mode is more efficient for pure digits; alphanumeric mode for uppercase letters and a few symbols. The tool auto-selects the best mode.
What image formats can I download?: PNG (default, lossless). The generated QR code can be embedded in documents, printed, or shared. SVG is not currently supported.
Mes données sont-elles téléversées quelque part ?: No. Both encoding and decoding happen entirely in your browser. The text you encode never leaves your device.