YouTube Thumbnail Downloader is a clean, modern, and responsive PHP tool that allows users to extract and download thumbnails from any YouTube video in HD, MQ, or SD quality — all without using any external API.

This tool is perfect for bloggers, designers, YouTubers, or developers looking to add a free utility to their site.

• 🎯 Extract High, Medium & Standard Resolution Thumbnails
• ⚡ Live Thumbnail Preview as you type the video URL
• 🌙 Dark/Light Mode Toggle (top-right corner)
• 🎨 Color Theme Switcher (Blue, Green, Purple)
• 💻 Responsive & Mobile Friendly layout
• 🧭 Sticky Navigation Menu: Home, How to Use, Contact
• 📷 Download Buttons for each resolution
• 🔗 Copy URL Button (with clipboard support)
• 🏷️ SEO Optimized (Meta title, description, OG tags)
• 🧾 "How to Use" Guide Section with clear steps
• 💬 Feedback Form (basic PHP form included)
• 🔢 Page View Counter (Simple PHP-based)
• 📢 AdSense Code Placeholder (Top + Sidebar)
• 📂 Clean Code + Easy Folder Structure
• 📱 Fully Responsive (Tablet & Mobile Compatible)
• 🔒 No External API Used – Only PHP & YouTube logic

Installation Guide (Included in README.txt):

• How to upload to shared hosting
• How to change the title/text/colors
• How to update navigation & links
• Where to add AdSense code
• How to enable/disable themes
• Folder structure explained