Free QR Code Generator

Free QR Code Generator

Developer Kit for Custom QR Code Apps

With this product, any developer can build or extend a professional QR code generator—handling URL, text, Wi-Fi, vCard, events, PayPal, crypto wallets, and more. Real-time previews, brand colors, error correction, size tweaks, PNG exports, clipboard copy—all client-side, no backend cruft.

Key Features

• Data Types Supported: URL, plain text, Wi-Fi credentials, vCard business cards, app links, event invites, PayPal payments, cryptocurrency addresses
• Branding Controls: Foreground/background colors, adjustable size (up to 1024px), error correction levels (low to high reliability)
• Logo Integration: Center logo embedding (branded default; extend for custom uploads)
• Real-Time Everything: Instant preview on input change
• Export & Share: High-res PNG download, one-click clipboard copy
• API Pattern: GET endpoint style (/api/qr?value=...&size=...&fgColor=...) ready to hook or replicate

Technical Specifications

• Framework: Next.js 15 (App Router compatible)
• Engine: Client-side QR rendering—no server calls needed
• Output: Vector-sharp PNG at any resolution
• Responsive Base: Mobile-first UI foundation
• Extensibility: Easy to add shapes, patterns, frames, batch gen, dynamic data binding, or tracking pixels
• Limitations: Core is single-QR; extend for multi/bulk; custom logos need your upload logic

Ideal For

• Developers embedding QR in marketing/sales tools
• Builders creating branded campaign generators
• Devs wiring dynamic QR into apps (events, payments, Wi-Fi portals)
• Any dev ditching third-party junk for clean, ownable QR flows

What's Included

• Full input/customization interface code
• Real-time preview components
• Color picker + error correction selectors
• Generation/export/download logic
• Clipboard integration hooks
• API-style parameter patterns for extension

Get Started Fast

Fork this, plug your data sources, launch branded QR tools that don't leak user intent. Skip the legacy wrappers—build the sharp, reliable base. Execution wins. Keep pushing and this repository is a great foundation.