WhatFont 作者： whatfont

This lightweight Mozilla Firefox extension helps designers, developers, content creators, and typography enthusiasts quickly identify fonts used on web pages without manually inspecting source code. With a simple point-and-inspect workflow, the extension reveals detailed typography information directly from visible webpage elements, making font analysis faster and more convenient during design reviews, frontend development, and UI research.

The tool allows users to inspect on-page text and instantly view font families, font sizes, font weights, line spacing, text styles, and other visual typography properties currently applied to selected elements. Whether analyzing modern website layouts, recreating branding styles, studying responsive typography systems, or reviewing UI consistency, the extension provides an efficient way to understand how text styling is implemented across websites.

Features:
• Quickly identify fonts used on any webpage
• Inspect font family, size, weight, and style information
• View typography properties without opening source code
• Lightweight and fast inspection workflow
• Simple point-and-click font detection interface
• Helpful for UI/UX designers and frontend developers
• Supports typography research and design inspiration
• Analyze headings, paragraphs, buttons, and interface text
• Minimal resource usage during browsing sessions
• Beginner-friendly interface for quick font discovery
• Useful for branding analysis and visual consistency checks
• Compatible with modern Mozilla Firefox environments

This extension is intended for educational, development, and design analysis purposes only. It does not modify webpage content, collect browsing activity, or interfere with website functionality.