WhatFont

Name: WhatFont
Rating: 4.8605 (86 reviews)
Author: Zack Michener

By: Zack Michener

A wrapper for Chengyin Liu's WhatFont tool

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Features & Capabilities

WhatFont is a Chrome extension that simplifies the process of identifying fonts on any webpage. With a convenient toolbar button, users can click to inspect and instantly get detailed font information for the text they hover over. This tool detects not only the font styles but also identifies font-serving services like Typekit and Google Fonts, embracing modern web typography. Designed as a user-friendly wrapper for Chengyin Liu's original WhatFont tool, it removes the complexity of traditional developer tools like Firebug or Webkit Inspector.

Ideal for designers, developers, and typographers, WhatFont streamlines font discovery with just one click, making it the easiest way to analyze web typography without technical hassle.

User Growth & Download Statistics

Add-on Design Developer Tools

By:

Daily users:

Rating:

Version:

1.3 Last updated: 2019-04-19

Version code:

3204258

Creation date:

2018-11-20

Risk:

Permissions:

activeTab
*://chengyinliu.com/*
*://typekit.com/*
*://www.google.com/webfonts/*
http://fontdeck.com/

Content scripts matches:

<all_urls>

Size:

81.96KB

Email:

*****@zjm.me

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-11

Compare stats and ranking:

Ranking

# 388 ▼ 1

Other rankings

#32 in Web Development #4 in font keyword 58

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Zack Michener

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/zjm-whatfont/

Email:

*****@zjm.me

Website:

http://www.chengyinliu.com/whatfont.html

User Reviews

Top pros: ease of use, fast and accurate font detection, and strong usefulness for designers; widely regarded as a top Firefox font finder. The main requests are small features (copy font name, a toolbar button, and a download link in the popup), but these do not detract from its overall value.

Pros

Easy to use and user-friendly
Quickly identifies fonts and styles with reliable font detection
Indispensable tool for designers; simple and effective
Highly regarded as a top Firefox extension for finding fonts
Trusted by users; long-time usage and strong recommendations

Cons

Recent reviews

by Fi*****, 2026-01-15

by ki*****, 2025-10-17

by de*****, 2025-08-26

View all user reviews ›

Is WhatFont Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

WhatFont requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

WhatFont has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
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