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Efficient CSS Comparison Tool for Developers

PixelPerfect CSS Diff is a powerful Chrome add-on designed for web developers to compare live web pages against reference designs. This tool allows users to overlay a reference image on any webpage, facilitating precise visual alignment. With features such as adjustable overlay position, opacity, and the ability to drag and drop images, it enhances the visual quality assurance process. Users can also utilize vertical and horizontal guides, which can be customized for thickness, color, and opacity, making it easier to achieve pixel-perfect results.

The program supports both desktop and mobile viewport adjustments, ensuring that overlays remain functional even above modal dialogs. After visual alignment, PixelPerfect CSS Diff captures browser-side CSS changes and allows users to export these changes as AI-ready instructions. This functionality streamlines the workflow for frontend implementation reviews and design reproduction checks, empowering developers to efficiently update their source files.

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App specs

  • License

    Free

  • Version

    0.1.0

  • Latest update

  • Platform

    chrome

  • Language

    English

  • Developer

Program available in other languages


Free Download for Google Chrome

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Is PixelPerfect CSS Diff safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
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  • Malware free
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Scan Info

Last scan
Thursday, April 30, 2026
Scan provider
VirusTotal

Softonic security commitment

PixelPerfect CSS Diff has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center