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.

QR-Code-Generator

Generate QR codes from text or decode QR codes from images. Kostenlos, privat und 100% clientseitig.

GrößeFehlerkorrektur

Eingabe

Beispiel ausprobieren:

Ausgabe

Local only

Letzte Verlauf

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Verwendung

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

Aufgaben mit diesem Tool

Erzeugen QR codes for URLs and data

QR codes kodieren Daten in ein 2D barcode scannable durch cameras. Lernen Fehler correction levels, capacity limits, und best practices.

AUFGABE

Erzeugen a QR code for a URL

Erstellen ein scannable QR Code das encodes ein URL, mit control über Größe, Fehler correction, und formatieren.

AUFGABE

Häufige Fragen

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.
Werden meine Daten irgendwo hochgeladen?: No. Both encoding and decoding happen entirely in your browser. The text you encode never leaves your device.

Letzte Verlauf

Verwendung

Aufgaben mit diesem Tool

Häufige Fragen

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