QR Code Generator - Create Free QR Codes for URLs & Text

A QR code (Quick Response code) is a two-dimensional barcode that stores text — most often a URL — as a grid of dark and light squares called modules. Any modern phone camera decodes one in a fraction of a second, which is why QR codes have become the standard bridge between the physical and digital worlds: menus, posters, packaging, business cards, event tickets, Wi-Fi onboarding, and payment flows all lean on them. This QR code generator encodes your content according to the ISO/IEC 18004 standard entirely inside your browser. The text you type is never uploaded, logged, or stored on a server, so it is safe to encode private links, internal URLs, or personal contact details. The size of the module grid grows with the amount of data. The standard defines forty capacity steps, from a 21 × 21 grid for a short code up to 177 × 177 for the largest, and the generator reports which one your content produced along with the exact grid dimensions. A plain web address usually fits in one of the smallest grids, while a long paragraph of text pushes the code into denser territory — denser codes still scan, but they need to be printed larger and demand a steadier camera. Every QR code embeds Reed-Solomon error correction, which lets a scanner reconstruct the message even when part of the symbol is dirty, scratched, or covered. You choose how much redundancy to include. Level L tolerates roughly 7% damage and keeps the code as compact as possible; M, the everyday default, tolerates about 15%; Q about 25%; and H about 30%, which is the level to pick for codes printed small, laminated, exposed to weather, or overlaid with a logo. Higher levels trade capacity for resilience: the same text at level H needs a noticeably larger grid than at level L. The preview is rendered as a true vector image built directly from the encoded matrix — black squares on a white background with the quiet zone (the mandatory four-module white border) included — so it stays perfectly sharp at any zoom. When you are happy with it, the download button produces a PNG at your chosen pixel size, ready for print or screen. One practical limitation to keep in mind: a QR code stores at most a few kilobytes, so it is meant for links and short payloads, not documents. For anything substantial, encode a short URL that points to the content instead — shorter input always yields a cleaner, easier-to-scan code.