Ai Apps

QR Code Generator

$100USD

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QR Code Generator

QR code app kit: logos, colors, live preview. Next.js 15, client-side only.

With this product, any developer can build or extend a 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.

Technical Manifest

Time-to-Value

~20 hours

from download to running

Core Stack

Next.js 15React 19TypeScriptClient-side JavaScript

Primary Libraries

qrcode.reacthtml-to-imageTailwind CSS

Infrastructure Requirements

VercelBrowser-only deployment

Architecture

```mermaid
graph TD
  A[User Input] --> B[Data Type Selector]
  B --> C{Format Type}
  C -->|URL| D[URL Validator]
  C -->|vCard| E[Contact Parser]
  C -->|WiFi| F[WiFi Config]
  C -->|Payment| G[Payment Link]
  D --> H[QR Config Panel]
  E --> H
  F --> H
  G --> H
  H --> I[QR Renderer]
  I --> J[Preview Component]
  J --> K[Export Options]
  K -->|PNG| L[Download]
  K -->|Clipboard| M[Copy]
  style A fill:#e1f5fe
  style I fill:#fff3e0
  style K fill:#e8f5e9
```

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