Who should use WhatFont?

WhatFont is a consumer product built for web designers, developers, and typography enthusiasts.

Does WhatFont have a free plan?

Yes — WhatFont is free to use.

What platforms does WhatFont run on?

WhatFont runs on the web and embeddable surfaces.

Is WhatFont still maintained?

Unverified. WhatFont has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to WhatFont?

Similar projects tracked by PulseGate include WhatFont, Detector Whats Font, and Font Detector.

WhatFont is developed by John Davis.

When did WhatFont launch?

WhatFont first shipped in 2025.

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WhatFont

Name: WhatFont
Author: John Davis

mozilla.orgBrowser DevTools & extensions

WhatFont is a Firefox browser extension that identifies fonts used on web pages. Users can inspect page text to determine its font family and related typography details without manually examining site code.

FreeWebEmbeddable

Visit mozilla.org

Overview

4 features

WhatFont is a Browser DevTools & extensions project. It focuses on identifying the fonts used on websites without inspecting page source or developer tools. It is built as a consumer product for web designers, developers, and typography enthusiasts. WhatFont is free to use. WhatFont is available on the web and embeddable surfaces.

Behind WhatFont is John Davis, and it first shipped in 2025. Among its 4 catalogued features are font identification, page inspection, and firefox integration. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Font identification
Page inspection
Firefox integration
No data collection

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed13 Sep · 03:13 UTC
WhatFont verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about WhatFont

What is WhatFont?: WhatFont focuses on identifying the fonts used on websites without inspecting page source or developer tools. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use WhatFont?: WhatFont is a consumer product built for web designers, developers, and typography enthusiasts.
Does WhatFont have a free plan?: Yes — WhatFont is free to use.
What platforms does WhatFont run on?: WhatFont runs on the web and embeddable surfaces.
Is WhatFont still maintained?: Unverified. WhatFont has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to WhatFont?: Similar projects tracked by PulseGate include WhatFont, Detector Whats Font, and Font Detector.WhatFont Detector Whats Font Font Detector
Who makes WhatFont?: WhatFont is developed by John Davis.
When did WhatFont launch?: WhatFont first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: web designers, developers, and typography enthusiasts
Model: B2C
Solves: Identifying the fonts used on websites without inspecting page source or developer tools.

Registered as

Firefox Add-ons: whatfont

Developer

John Davis

Index record

Indexed: 13 Sep 2026
Lifecycle: Alive
Last seen: 13 Sep 2026

Identity audit (13)

Slug: whatfont-mozilla-org
Lifecycle state recorded: 13 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 13 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 13 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/whatfont

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