Font Face Observer

Font Face Observer is a fast and simple web font loader. You can use it to load fonts and customise your browser’s font loading behaviour. Font Face Observer gives you control over web font loading using a simple promise based interface.

Font Face Observer is a small @font-face loader and monitor (3.5KB minified and 1.3KB gzipped) compatible with any webfont service. It will monitor when a webfont is loaded and notify you. It does not limit you in any way in where, when, or how you load y

这个开源项目由Bram Stein维护，遵循BSD许可协议。 无论你的字体是自托管还是来源于Google Fonts、Typekit等服务，FontFaceObserver都能帮助你优化字体加载策略，改善用户体验。 无需复杂的配置，即可实现对@font-face规则中定义的字体的监听和管理。

Font Face Observer is a small @font-face loader and monitor (3.5KB minified and 1.3KB gzipped) compatible with any webfont service. It will monitor when a webfont is loaded and notify you. It does not limit you in any way in where, when, or how you load y

Font Face Observer is a small @font-face loader and monitor (3.5KB minified and 1.3KB gzipped) compatible with any webfont service. It will monitor when a webfont is loaded and notify you. It does not limit you in any way in where, when, or how you load y

We make it faster and easier to load library files on your websites.

Font Face Observer is a small @font-face loader and monitor compatible with any web-font service. It will monitor when a web font is applied to the page and notify you. It does not limit you in any way in where, when, or how you load your web fonts.