In this case study we analyze web font performance to see how Google Fonts, hosting locally, and third parties such as Typekit, affect overall load times.| KeyCDN
Learn why WOFF2, and WOFF as a fallback, is the only font format you need.| Wicki.io
Discover how to drastically reduce font file sizes using variable fonts from Google, including practical tips for optimizing web performance.| ckeditor.com
tl;dr: Don’t even try online converters. They’ll drop the CJK characters. Just install woff-tools and/or woff2 on your own machine. Most Linux package managers will have them; on Windows, you can use…| Adam Nelson