PerfectPixel by WellDoneCode (pixel perfect)
Developer Tools
FreemiumConfidence 64
Drop your mockup on the live page for pixel-perfect comparison with your code.
Users
300K
Rating
4.3
Reviews
636
7D Growth
0|0%
Stable signalUnknownMedium-risk permissions
Baseliner
Baseliner adds horizontal & vertical lines to help you align your grid to any website.
Users5KCurrent public install base
Rating4.3Store average score
Reviews47Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
4 assetsBaseliner Media preview
Trend
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User Growth Over Time
Rating trend
7-day rating trend
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7-day rating change
Start
4.34
Latest
4.34
7-day rating change
0.00
2026年7月14日2026年7月20日
Growth overview
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1-day growthFlat
00%7-day growthFlat
00%30-day growthFlat
00%Technical snapshot
Version, languages, and crawl freshness
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Version7.2
ManifestV3
Size205KiB
Languages1English (United Kingdom)
Published
Store updated
Last crawled
English (United Kingdom)
Overview
Product summary
Review the store description, core capabilities, and common use cases.
Adds a horizontal and/or vertical lines on top of any website.
The Baseliner extension adds a fully customisable CSS layer on top of any website to help you align your design and ensure the grid is in place.
--------------------
The best place for support is not in the reviews section below, but on the Baseliner GitHub repo:
https://github.com/jpedroribeiro/Baseliner/issues
Check out full set of features and how to contribute on our GitHub page:
Reviews
Recent review snapshot
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Store average score4.3Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.1Average computed only from synced review bodies below
Reviews with text15Synced review bodies
Total ratings / reviews47Chrome Web Store public rating/review count
Store average score: 4.3. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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I use every day everything suits me
Does not work on thinkpad windows 10...
Loving the way this extension allows me to quickly an easily check vertical rhythm!
Great tool for design
Nice! TNX