QR Code Generator

Yes. The generator is completely free with no ads, sign-up, or watermark, and the QR codes it produces are static — the data is encoded directly into the image, so the code never expires and does not depend on this site staying online. As long as you keep the downloaded PNG or SVG, the code will keep working.

No. The QR code is generated entirely in your browser using JavaScript. The text or URL you enter is never uploaded to a server, which makes it safe to encode private links, Wi-Fi credentials, or internal URLs.

Use PNG for quick sharing, slide decks, and most web or chat use — it is a ready-to-use raster image at the size you selected. Use SVG when you need to print large (posters, packaging, signage) or resize without any quality loss, since SVG is vector and stays sharp at any scale.

Error correction adds redundancy so a QR code still scans when part of it is dirty, damaged, or covered by a logo. Level L recovers about 7% of the code, M about 15%, Q about 25%, and H about 30%. Higher levels make the code denser (more modules) for the same data. Use L or M for clean on-screen use, and Q or H for printed codes or when you place a logo in the center.

The three most common causes are: too little contrast between the foreground and background colors (keep the code dark on a light background), too small a size for the amount of data (increase the size or shorten the URL), and no quiet-zone margin (leave the margin enabled so scanners can find the code edges). Very long text also produces a dense code that is harder to scan — prefer a short link where possible.

Yes — you can set the foreground and background colors. For reliable scanning keep a strong light-to-dark contrast (a dark foreground on a light background). Inverted or low-contrast color pairs often fail to scan.

Open the Styling section and upload a PNG or SVG in the Logo field — it is placed in the center of the code. This works because QR codes have built-in error correction: the surrounding pattern carries enough redundancy that a covered center still scans. Keep the logo to roughly 20–30% of the code, leave "hide dots behind logo" on, and use a higher error-correction level (Q or H) so it stays reliable.

Usually yes, if you keep a few rules: strong contrast between the dots and the background, the three finder squares (the big corners) clearly visible, a quiet-zone margin around the code, and error correction at Q or H when you add a logo or heavy styling. Rounded dots, gradients, and colored corners are safe; very low contrast, busy gradients, or an oversized logo are the usual reasons a fancy code fails. Always test-scan with a real phone before printing.

Not reliably. A center logo is safe, but a full photo behind every module usually drops contrast so much that scanners fail. The viral "QR codes that look like a landscape or animal" are made with AI image models (Stable Diffusion + ControlNet), not a simple background image, and even those take many attempts to stay scannable. For dependable results, stick to a logo plus color, gradient, and shape styling.