WhatFont icon

WhatFont

by Chengyin Liu · chengyinliu.com · Developer Tools
FeaturedEstablished publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

The easiest way to identify fonts on web pages.

Users
3M
0 in 30 days
Rating
3.8 / 5
−0.17 in 30 days
Ratings
2,056
+5 in 30 days
Store rank
#154
#147 among extensions
Version
3.3.0
updated 12 Oct 2026

Users

monthly, 3 years
600K1.8M3MAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 3,000,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
6001,3282,056Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 2,056 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About WhatFont

Say goodbye to the complexity of developer tools for identifying fonts. With WhatFont, discovering the fonts used on websites becomes as effortless as hovering over text. Want more details? A simple click on any element reveals the styles applied, making it easier than ever to uncover the secrets behind beautiful typography. Recommended by Wired WebMonkey, Lifehacker, and SwissMiss. ——————————————————————————— History: • 3.3.0 - Redesigned details panel: real font names, where the font comes from, letter spacing, line height in px and the HTML element - Click any value to copy it, or copy all the CSS at once - Explains when WhatFont can't run on a page - Works on local files when file access is allowed - Shows a one-time tip for new users • 3.2.0 - Improved toolbar icon compatibility • 3.1.1 - Removed unnecessary developer logging • 3.1.0 - Added multiple color format support • 3.0.1 - Restored escape key to exit • 3.0.0 - Completely Rewritten: The entire extension has been rebuilt for better performance and usability. - Updated Permission Model: We've revised permissions to better respect user privacy while maintaining functionalities. - Refreshed Appearance: The look has been updated for a more modern feel. - Isolation from Host Website Styling: Ensures WhatFont's appearance is unaffected by the website it's used on. - Adaptive Toolbar Icon: The toolbar icon now changes based on the system's appearance settings. - Support for New CSS Color Values: Enhanced support for the latest CSS color values. • 2.1.0 - A new design thanks to Siddharth Mate • 2.0.3 - Retina toolbar icon • 2.0.2 - Fix option page for button styles • 2.0.1 - Use native screen capturer • 2.0 - Improved sharing • 1.7 - Added font services detection for FontDeck (Thanks to Mark Perkins) - Improved font detecting algorithm - Improved overall performance • 1.6.1 - Added color detection for text • 1.6 - Added a tweet button for instant sharing through Twitter - Improved style reseting ­• 1.5 - Overall restyling ­• 1.4.4 - Supported light icon for dark themes ­• 1.4.3 - Fixed a bug related to Typekit service detection ­• 1.4.2 - Reduced loading time - Supported HTTPS protocol ­• 1.4.1 - Fixed stylesheet bug • 1.4 - Restructured source code - Supported font services detection for Typekit and Google Font API - Fixed toolbar button bug. Second click is now "Exit WhatFont"

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%+1−0.17
30 days0+0.0%+5−0.17
6 months0+0.0%+8−0.17
1 year0+0.0%+27−0.15

Chrome Web Store search rankings

Where WhatFont appears when people search the store, with the 30 day change
Search phrasePosition30 days
identify#100
font#100
details#100
style#30+10
website#30+60
icon#40+10
chrome homepage#49+17
source code#49+40
source#700
website usage#70new

Version history

7 versions recorded
3.3.012 Oct 2026
3.2.04 Mar 2024
3.1.12 Mar 2024
3.1.028 Feb 2024
3.0.127 Feb 2024
3.0.017 Feb 2024
2.1.06 May 2017

Details

Category
Developer Tools
First seen
6 May 2017
Size
762 KB
Languages
en
Pricing
Free
Support
chengyinliu.com
Extension ID
jabopobgcpjmedljpbcaablpmlmfcogm

Permissions and risk

Minimal riskimpact 0, likelihood 0
Permissions
activeTabscriptingstorage

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