QR Code Generator
Generate QR codes from text or URLs.
LocalYour data is processed locally in your browser and is not uploaded to Alphzen.
The QR matrix is built in this tab. Alphzen does not host a redirect or count scans. Test a scan before you print.
How to use
- Paste the URL or text to encode.
- Choose error correction (L, M, Q, or H) and size.
- Generate, then download the PNG. Scan it before you print a batch.
Features
- Runs in this tab with the qrcode library (Reed–Solomon is not hand-rolled).
- Error correction levels L through H.
- Optional dark/light colors as HEX.
- Download as PNG. Nothing is sent to Alphzen.
- Does not track scans or shorten URLs.
Examples
https://alphzen.com
FAQ
Is the QR encoded on a server?
No. The matrix is built in your browser. Alphzen does not host a scan redirect.
Can I encode a Wi-Fi password or a vCard?
You can paste any text, including WIFI: and BEGIN:VCARD payloads. The tool does not validate those formats. Treat the PNG as sensitive if the payload is.
Why is there a size limit?
QR capacity is finite. Very long payloads fail with an error instead of a broken image.
Related tools
About this tool
A QR code is a 2D barcode. Encoding a URL locally means the string never hits a generator that logs it.
Print quality depends on size, contrast, and error correction. Test a scan from a phone before a print run.
Related: URL Encoder if the link needs percent-encoding first, Color Converter if you pick brand colors.