PerfectPixel by WellDoneCode Extension for Chrome

PerfectPixel allows developers and markup designers put a semi-transparent image overlay over the top of the developed HTML and perform pixel perfect comparison between them.

Features:
* Multiple overlays support
* Inversion and scaling support
* Separate overlays for each website
* Overlays are saved between browsing sessions
* Minimalistic easy-to-use UI
* Drag-n-drop file upload support
* Paste from url and clipboard support
* Keyboard arrow keys and mousewheel support
* Extension works with file:// scheme (local files)

Tips:
* Double-click on header to expand/collapse main window
* Use Shift + arrow keys for 10px position change

Changelog: http://www.welldonecode.com/perfectpixel/changesets/
Shortcuts: http://www.welldonecode.com/perfectpixel/shortcuts/

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Please send bug reports and ideas for future versions to:
support@welldonecode.com
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--> Extension is AD supported. Ads are injected into extension panel only, no any injections into websites. If you wish to disable ads you can do it in extension Options menu