Free certificate QR code generator
Turn a verification link or certificate ID into a scannable QR code. Pick a size and error correction level built for printing, then download it as PNG or SVG.
Runs in your browser — nothing is uploaded
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Beyond the code
A QR code is only as good as where it points
This tool encodes exactly what you type — nothing more. If you don't have a real verification page yet, CertificateJoy creates one automatically for every certificate you issue, complete with recipient details, status, and a link this QR code can point to. Need an ID to point it at first? Try the free certificate ID generator.
Frequently asked questions
What error correction level should I use for a certificate QR code?
Certificates are usually printed, folded, or scanned from odd angles, so a higher error correction level helps more than it would for a code shown only on a screen. This tool defaults to High (H), which can recover from roughly 30% damage or obstruction — a safe default for anything printed. Use Medium (M) or Quartile (Q) only if you need to fit more data and are confident the code will stay on a clean, high-resolution screen.
Does this tool create a real verification page, or just the QR code image?
Just the QR code. It encodes exactly whatever URL or text you type into the box — it doesn't create, host, or check any page. Point it at a URL that doesn't exist and the code will still scan successfully, straight into a broken link. If you don't have a hosted verification page yet, CertificateJoy generates one automatically for every certificate you issue.
Should I encode a URL or just a certificate ID?
A URL is almost always more useful. A QR code that only contains a plain ID (like CERT-2026-000142) just displays that text when scanned — the person still has to go find somewhere to check it. A URL that opens straight onto a verification page lets anyone confirm the certificate in a single scan, with no extra steps.
How small can I print this QR code and still have it scan reliably?
As a rule of thumb, keep the printed code at least about 2 cm (0.75 in) square, and don't crop away the white quiet zone (margin) around it. A higher error correction level and a larger export size both make a code more forgiving of small print sizes and lower-quality printers, but there's no substitute for test-scanning a printed copy with a couple of phones before a full print run.
Is this tool free, and does it store the links I generate codes for?
Yes, completely free with no signup. The QR code is generated entirely in your browser — nothing you type is uploaded or stored on any server.