PerfectPixel by WellDoneCode (pixel perfect)
by WELLDONECODE LLC
PerfectPixel by WellDoneCode (pixel perfect)
by WELLDONECODE LLC
Quick Look
PerfectPixel assists developers and designers in achieving pixel-perfect web development by overlaying reference images with adjustable transparency.
AI Overview
Who is this for?
Web developers and markup designers who need to ensure their websites match design mockups with perfect pixel accuracy.
Key Features
- → Overlay semi-transparent reference images
- → Multiple layers with inversion, scaling, and rotation
- → Per-site and persistent layer management
- → Flexible file upload (drag-and-drop, URL, clipboard)
- → Enhanced navigation with keyboard and mouse controls
Reviews Analysis
Overall Sentiment
Mostly PositiveUsers find PerfectPixel to be a highly useful tool for ensuring pixel-perfect designs, praising its accuracy and features, though some mention minor usability quirks.
Note: AI analysis focuses on the substance and recency of reviews, which may differ from the overall store rating.
What Users Love
- ✓ Excellent for achieving pixel-perfect accuracy.
- ✓ Supports multiple layers and flexible uploads.
- ✓ Helpful for web development and design tasks.
Points to Consider
- × The free version displays ads within the extension panel.
- × Some users might find the Pro features worth the upgrade for advanced functionality.
Official Description
From the Developer
Drop your mockup on the live page for pixel-perfect comparison with your code.PerfectPixel adds a semi-transparent image overlay on top of any web page, letting you compare your frontend implementation against the original design mockup directly in the browser. Upload a design comp, adjust opacity, and immediately see where your code diverges from the spec — with pixel-perfect accuracy. No more switching between tabs or squinting at two screens side by side.
How it works: install the extension, open any page, and drop in an image — drag and drop, paste a URL, paste from clipboard, or use the file picker. Position and scale the overlay, then adjust opacity to compare.
Features:
- Overlay any PNG, JPG, or SVG on any web page
- Adjustable opacity for real-time visual comparison
- 4 blend modes (Difference, Invert, Multiply, Overlay) plus Normal — each useful for catching different types of mismatches
- Lock the overlay to click through it and interact with page elements underneath
- Per-domain persistence: your layers stay saved per site and restore automatically across browser sessions
- Multiple layers per domain
- Scaling, repositioning, and centering controls
- Keyboard shortcuts for common actions
Pro features:
- Unlimited simultaneous layers (free tier supports 2)
- Folders to group layers
- Layer rotation
- Dark theme
- Custom icon, accent color, and custom CSS
Built for frontend developers, QA engineers, agencies, and development teams who need to verify that what they shipped matches what was designed.
350,000+ developers. 10+ years on the Chrome Web Store.
Your extension? Let us know if we can update or correct anything!
Key Info
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Rating:
4.3/5.0
629 ratings
- Users:300,000
- Version:3.1.0.0
- Updated:May 11, 2026
- Developer:Visit Website →
Stats from Chrome Web Store
