A1 Logics
QR Code Generator
A free, browser-based QR code generator built by A1 Logics. Create branded QR codes with your own logo, custom foreground and background colors, and three module styles — square, rounded, or dots. Everything runs locally in your browser; nothing is uploaded to any server.
Pick any foreground and background color or use one of seven brand-aligned presets. Switch between square, rounded, or dot module shapes for a unique look.
Upload your own logo or use the A1 Logics mark. Adjustable from 12% to 32% of the QR width. Automatic high error correction keeps the code scannable even with the logo overlay.
The QR updates instantly as you type or change settings — no “Generate” button delay. What you see is exactly what gets downloaded.
Download as PNG up to 4000×4000 pixels — perfect for banners, posters, ID cards, and conference signage. PDF export available with A1 Logics branding.
Your data never leaves your browser. No tracking, no signup, no account, no watermark. Works offline once the page loads.
The data is encoded directly into the QR pattern. No redirect servers, no broken links years later. Once generated, it works forever.
Yes — completely free, no signup, no watermark, and no usage limit. The QR codes you create are yours to use commercially or personally without any attribution required.
Absolutely. Upload any PNG, JPG, or SVG logo, and it will be placed dead-center on the QR code. A small white backdrop is added behind the logo so it stays visually distinct from the modules. The generator automatically bumps the error correction to level H (30%) when a logo is present, so up to 30% of the modules can be covered and the code will still scan reliably.
Three module shapes: classic Square (the standard look), Rounded (squares with smoothed corners for a softer feel), and Dots (perfect circles for a more decorative aesthetic). Each can be combined with any color and an optional center logo.
No, never. These are static QR codes — your data is encoded directly into the visual pattern. There's no redirect server, no shortening service, no account in the middle. The QR will work in 5 years just as it does today, even if this generator goes offline.
Up to 4000×4000 pixels for PNG export — large enough for billboard-sized print. The PDF export embeds a high-resolution version sized at 90mm × 90mm on A4 with A1 Logics branding, suitable for handouts and certificates.
Anything text-based: website URLs, email addresses, phone numbers, plain text, WiFi credentials (manually formatted), UPI payment links, vCard contact details, calendar events, and more. Maximum capacity is around 2,953 alphanumeric characters, though shorter values produce smaller, more reliable QR codes.
Yes — every modern smartphone (iPhone since iOS 11, Android since 9.0) has a built-in QR scanner in the camera app. Older phones may need a separate QR scanner app, but the codes generated here follow the standard QR specification and work universally.
Yes — A1 Logics has supported 600+ conferences and we built this tool with event use cases in mind. It's perfect for delegate badges, registration links, abstract submission portals, payment QRs, certificate verification, exhibitor stalls, and contactless check-in systems. Contact A1 Logics if you need a complete conference management solution including barcode/RFID integration.
Built and maintained by A1 Logics, Mangalore — a software development company specialising in conference management, web applications, and ERP solutions across India.