🚀 Overview

QRcdr is a fast, mobile-friendly QR code generator that lets you create and style QR codes for URLs, vCards, Wi-Fi, events, payments, app links and more. It’s built for real-world use—product packaging, restaurant menus, print campaigns, business cards, and event check-ins—where clean vector output and reliable scanning matter.

Ideal for: Agencies, printers, restaurants, marketers, SMBs, and SaaS builders who need a self-hosted QR solution with branding controls and export options.

✨ Key Features

• Many QR Types: URL, Text, Email, SMS, Tel, vCard/MeCard, Wi-Fi, Geo, Event (iCal), WhatsApp/Telegram, app deep links.
• Design Controls: Foreground/background colors, gradients, logo overlay, corner styles, error-correction (L/M/Q/H), margins & sizes.
• High-Quality Export: Download PNG, JPG, or SVG for print; fine-tune DPI for large formats.
• Dynamic Links (optional): Create short/dynamic URLs that you can update later without reprinting codes.
• Scan Analytics (optional): Count scans, referrers, device/geo breakdown when using dynamic mode.
• Templates & Presets: Save favorite styles (brand colors, logo) for consistent campaigns.
• Responsive UI: Touch-friendly controls; preview scales for mobile screens.
• Multilingual Ready: Language files; RTL-friendly layout.
• Privacy-Aware: Self-hosted; no external calls required for static generation.

⚙️ Technical Stack

• Backend: PHP 7.4/8.x (GD or Imagick for raster outputs)
• QR Engine: PHP QR libraries for encoding; SVG export supported
• Frontend: HTML5, CSS3, JavaScript (vanilla/jQuery where applicable)
• Database (optional): MySQL/MariaDB for dynamic links, analytics, presets
• Server: Linux hosting (Apache/Nginx), HTTPS recommended
• Browsers: Latest Chrome, Edge, Firefox, Safari

🧩 Installation Guide

1. Upload the QRcdr folder to your server (e.g., /var/www/qrcdr).
2. If using dynamic mode/analytics, create a MySQL database and user.
3. Edit the configuration file (e.g., config.php or .env) with site URL, DB credentials, and feature flags.
4. Ensure PHP GD/Imagick is enabled; set write permissions for cache/export directories.
5. Visit your site URL to generate codes; test SVG/PNG downloads and a few QR types (vCard, Wi-Fi).

📦 Deliverables

• Complete source code (GPL) of QRcdr
• QR generator UI with style controls & presets
• Optional dynamic links & analytics module
• Documentation: install, configuration, customization tips
• Sample presets (brand colors, logo overlay examples)

📱 Supported Platforms

• Linux shared/VPS/cloud hosting (LAMP/LEMP)
• PHP 7.4–8.x; optional MySQL/MariaDB
• Modern desktop & mobile browsers

🧠 Notes

• License: Distributed under the GPL—you may study, modify, and redistribute under GPL terms.
• Customization Tips: Add team accounts, API endpoints for bulk generation, branded templates, URL shortener integration, and UTM helpers.
• Print & QA: Prefer SVG for print; keep error-correction high (Q/H) when overlaying logos; test on multiple scanner apps.
• SEO Assurance: This copy targets “QR code generator script”, “responsive QR generator”, “self-hosted QR”, and “SVG QR code” keywords.

👨‍💻 Original Developer Credit

Credit to the original author of QRcdr. For official updates, premium support, or commercial licensing, visit the original marketplace listing:
Original Author on CodeCanyon.

🔒 Disclaimer

This distribution is provided under the GPL for educational and development purposes. It is not affiliated with or endorsed by the original developer unless explicitly stated. All trademarks and brand names are the property of their respective owners. For official updates and vendor support, please purchase a valid license from the original developer.