QR & barcode generator

QR and linear barcodes. QR: pixel width/height, optional centre logo (loaded locally in the tab). Use strong error correction with logos. Barcodes: module width and bar height in px.

Type

Barcode format

Content

QR output size (pixels)

Lock square — height follows width

Rendered image dimensions in px (not screen CSS). Larger values print sharper.

Image width (px)

Image height (px)

Error correction

Higher levels recover more damaged modules; recommended with a centre image.

Centre logo (PNG, JPG, WebP, GIF)

Picked file stays in this tab until you close it.

Module width (px)

Width of one bar unit.

Bar height (px)

Vertical size of bars.

Foreground

Background

Caption under symbol

Caption text

Preview

Generate to preview.

Formats & logos

QR suits URLs and short text. With a centre logo, test scans on real phones. EAN and UPC need valid lengths and check digits. CODE128 and CODE39 follow symbology rules for characters.