Overlayly - Pixel Perfect Design Comparison

Overlay design screenshots on websites for pixel-perfect development. Free and open source.

🎯 Overlayly - Your Free Pixel-Perfect Development Companion Transform your design-to-code workflow with Overlayly! This completely free Chrome extension helps web developers achieve pixel-perfect implementations by overlaying Figma designs directly onto live websites. ✨ KEY FEATURES 📸 Multi-Image Support - Upload multiple design screenshots at once - Switch between desktop, tablet, and mobile designs instantly - Perfect for responsive development 🎨 Smart Color Picker - Quick-click any pixel to copy exact colors - Get both HEX and RGB values instantly - No more guessing brand colors 📏 Precision Ruler Tool - Measure distances in pixels with click-and-drag - See both total distance and X×Y dimensions - Perfect for spacing verification 🎛️ Full Control Panel - Adjust opacity (0-100%) for easy comparison - Scale designs (10-300%) to match any viewport - Drag panel anywhere on screen - Reset position with one click 🔧 Developer-Friendly - Works with Chrome DevTools device toolbar - Hold-to-drag prevents accidental movements - Instructions built into the interface - Auto-saves your images and settings 💯 COMPLETELY FREE - No premium version - No payment required - No usage limits - No ads - Open source spirit 🚀 HOW TO USE 1. Upload your Figma design screenshots 2. Set your design width (Figma frame width) 3. Click "Apply Overlay" 4. Hold 200ms on image to drag and position 5. Adjust opacity to compare 6. Quick-click to pick colors 7. Enable ruler to measure spacing Perfect for: ✓ Frontend developers implementing designs ✓ Design-to-code conversion ✓ Responsive web development ✓ Quality assurance testing ✓ Client presentations 🎓 WORKS BEST WITH: - Chrome DevTools responsive mode - Multiple breakpoint testing - Component-by-component development - Header and navigation implementation - Landing page pixel-perfection 💡 PRO TIPS: - Use responsive mode (Ctrl+Shift+M) for exact viewport matching - Upload partial screenshots for specific sections - Switch between images to test different breakpoints - Scale slider helps when design width doesn't match viewport - Drag controls panel out of the way for clean comparison 🔒 PRIVACY FIRST: - No tracking or analytics - No data collection - Everything stored locally in your browser - No account or sign-up required - Your images never leave your computer 🆓 FREE FOREVER: Built by developers, for developers. This tool will always remain completely free with all features available to everyone. 📦 TECHNICAL DETAILS: - Works on all websites - Compatible with Chrome DevTools - Supports PNG, JPG, SVG images - Instant image switching - Lightweight and fast - No external dependencies Whether you're a freelance developer, part of an agency, or building your own projects, Overlayly helps you deliver pixel-perfect implementations with confidence. Download now and never miss a pixel again! 🎯