D2D Utilities
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QR & Barcode Generator

Vector Export

Create customizable QR codes for URLs, Wi-Fi networks, and plain text, or standard Code 128 barcodes with instant SVG/PNG download.

Client-Side Generation: Data never leaves browser memory
Type:
ECC:
Enter text to render barcode
https://d2d-utilities.pages.dev

Vector Barcode & QR Generation

QR codes use Reed-Solomon error correction for readability even when damaged. Code 128 encodes high-density alphanumeric data with a modulo 103 checksum.

How to generate QR codes and barcodes

  1. 1Select QR Code or Code 128 mode.
  2. 2Choose data type (URL, Plain Text, or Wi-Fi credentials).
  3. 3Customize error correction level and margin size.
  4. 4Download your code in vector SVG or PNG format.

Frequently Asked Questions

Are my Wi-Fi passwords transmitted to any server?

Never. QR matrix calculations occur strictly within browser JavaScript memory.