QR codes are square, scannable matrices that encode text — most commonly URLs — for quick access from a phone camera. This generator encodes your text locally, no server round-trip required.
How QR codes work
A QR code stores data as a grid of black and white modules, with finder squares in three corners for orientation, timing patterns, and Reed–Solomon error correction so codes still scan when partially damaged or stylised.
Error correction levels
Higher error correction makes a code more resilient but shrinks its capacity. This generator uses the 'low' level, maximising how much text a code can hold while remaining easy to scan.
Frequently asked questions
No. The code is generated from your text and rendered as a static image — it works forever, exactly like a barcode. The encoded content never changes.
No. Everything is generated locally in your browser from scratch — your text never leaves your device.
At low error correction a code can hold up to about 270 characters. URLs, Wi-Fi configs, contact info and short snippets all fit comfortably.