Design Overlay Tool

★ IDEAL FOR DEVELOPERS WHO:
• Work with Figma designs or PDF mockups
• Need to verify pixel-perfect implementation
• Want to quickly compare design vs. reality
• Build responsive websites across multiple breakpoints

★ KEY FEATURES:

📸 Dual Upload Modes
- Manual Upload: Assign any image to any breakpoint with full control
- Bulk Upload: Auto-detect and map multiple images at once by dimensions

📱 Smart Responsive Detection
Automatically switches designs as you resize your browser:
• Mobile: 390px
• Tablet: 768px
• Desktop Medium: 1280px
• Desktop Large: 1440px
• Desktop XL: 1600px

🎯 Precision Controls
- Opacity slider (0-100%) to blend design with implementation
- Arrow key nudging: 1px precision or 10px with Shift
- Click-through overlay - never blocks page interaction
- Keyboard shortcuts for instant toggle and opacity control

💾 Persistent State
All your settings, images, and positions are saved automatically. Resume your work exactly where you left off.

★ HOW IT WORKS:

1. Export your design mockups from Figma or PDF
2. Upload images (bulk auto-detection or manual assignment)
3. Navigate to your web page
4. Enable overlay and adjust opacity
5. Fine-tune alignment with arrow keys
6. Compare and perfect your implementation

★ PERFECT FOR:
- Frontend developers checking design accuracy
- QA teams verifying responsive layouts
- Design handoff validation
- Client presentation and approval
- Pixel-perfect implementation verification

★ SMART AUTO-DETECTION:
Bulk upload handles DPI scaling automatically. Export 150 DPI PDFs and the extension intelligently maps them to the correct breakpoints.

★ KEYBOARD SHORTCUTS:
Configure custom shortcuts at chrome://extensions/shortcuts:
- Toggle overlay on/off
- Increase/decrease opacity by 10%
- Plus arrow keys for precise positioning

No accounts. No subscriptions. No tracking. Just a simple, powerful tool to help you build better websites.

Perfect for agencies, freelancers, and teams who care about design quality.