rule5
Workflow & Planning
Extension for sales teams to learn about their prospective customers and key people to engage with.
Users
11
Rating
5.0
Reviews
3
7D Growth
0|0%
Growth signalNo paid features detectedHigh-risk permissions
Serifio: Font & Colour Inspector
Identify fonts, copy colour codes and check WCAG contrast ratios. The essential tool for designers and developers.
Users194Current public install base
Rating4.6Store average score
Reviews10Public review volume
Manifest versionV3Extension platform version
7-day growth+4Net users gained this week
7-day growth rate+2.11%Relative weekly velocity
Preview
4 assetsSerifio: Font & Colour Inspector Media preview
Trend
User growth trend
Review user movement across collected snapshots.
User Growth Over Time
Rating trend
7-day rating trend
View collected rating snapshots from the latest 7-day window to assess rating stability.
7-day rating change
Start
4.60
Latest
4.60
7-day rating change
0.00
2026年7月12日2026年7月18日
Growth overview
Daily, weekly, and monthly growth
Compare 1-day, 7-day, and 30-day net growth and growth rate.
1-day growthNo data
----7-day growthGrowing
+4+2.11%30-day growthNo data
----Technical snapshot
Version, languages, and crawl freshness
Review publication date, version, supported languages, and crawl timestamps.
Version6.5.0
ManifestV3
Size53.92KiB
Languages1English (United Kingdom)
Published
Store updated
Last crawled
English (United Kingdom)
Overview
Product summary
Review the store description, core capabilities, and common use cases.
Peek under the hood of any website with Serifio, a free Chrome extension that makes font inspection, colour extraction and typography analysis fast, simple and accurate.
——————————————————————————
KEY FEATURES
• Font detection: Identify font family, size, height, spacing, weight; works with Shadow DOM & modern components
• Font verification: Small indicator dot shows if the font is loading correctly (green) or a fallback is in use (yellow)
• Colour extraction: Grab HEX, RGB, HSL or named CSS colours with one-click copy (incl. background)
Reviews
Recent review snapshot
Inspect the latest comments and rating distribution.
Store average score4.6Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.7Average computed only from synced review bodies below
Reviews with text3Synced review bodies
Total ratings / reviews10Chrome Web Store public rating/review count
Store average score: 4.6. 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.
Related products
Similar and related extensions
Review related products from the Chrome Web Store detail page.
chg-sf-highlighter
Workflow & Planning
Highlights useful salesforce fields for CHG healthcare employees
Users
6K
Rating
--
Reviews
0
7D Growth
0|0%
HoopsHub
Entertainment
For all your basketball needs!
Users
22
Rating
5.0
Reviews
4
7D Growth
-3|-12%
PageTrail
Well-being
This Extension tracks your daily surfing activity
Users
47
Rating
--
Reviews
0
7D Growth
-1|-2.08%
Tab Search Pro
Tools
Search active tabs, highlight results, save search history, switch between the last two active tabs, navigate tabs chronologically.
Users
33
Rating
2.5
Reviews
2
7D Growth
-3|-8.33%
Fleaflicker Extender
Fun
An extension that provides enhanced searching of players in your NHL fleaflicker league.
Users
93
Rating
5.0
Reviews
1
7D Growth
+9|10.7%
Sadly doesn't work; very buggy and takes forever to install. I recently found another Chrome plugin called WhatFont that seems very stable and has a better UX/UI.
Works amazing! Personally love Anthropic's website design a lot and this helped me extract inspiration :)
Works in the ShadowDOM which is a significant improvement upon competitors. Only minor problem I've found is it can't tell whether a font is rendering correctly and only shows what the font-family property returns. Otherwise works flawlessly.