


What Font File Formats Are Needed for Modern Web Browsers, Android, and iOS?
Font File Requirements for Modern Browsers, Android, and iOS
What Font Files are Needed?
To provide a comprehensive font experience across modern browsers, Android, and iOS devices, it is essential to include a variety of font file formats. While the original font files listed in the question may have been sufficient when the query was first posed, current requirements have evolved. Here's an updated breakdown of necessary font file formats:
WOFF2 and WOFF
WOFF2 and WOFF (Web Open Font Format) are essential for modern web development. WOFF2 offers lossless compression and is supported by the majority of browsers, making it the primary format for web fonts. WOFF serves as a fallback for legacy browsers that do not support WOFF2.
Deprecation of Other Formats
Other formats mentioned in the original query, such as EOT (Embedded OpenType), SVG (Scalable Vector Graphics), TTF (TrueType Font), and OTF (OpenType Font), are no longer recommended for web use. EOT is obsolete, SVG fonts are not widely supported and were retracted due to performance issues, and both TTF and OTF include unnecessary data for web applications.
Benefits of WOFF
Using WOFF provides several advantages:
- Lossless compression reduces file size for faster transmission.
- Byte-for-byte wrapping around OpenType fonts ensures compatibility while optimizing for web use.
- The WOFF format relaxes certain requirements for fonts, further reducing file size.
WOFF2 Compatibility
While WOFF2 is not universally supported yet, its adoption is growing rapidly. Consult caniuse.com for browser-specific support information. If targeting browsers that do not support WOFF2, it is important to include WOFF as a fallback.
Google Fonts Subsetting
Google Fonts offers subsetting with WOFF2, allowing selective loading of only the characters required for specific locales or languages. However, it is primarily useful for websites with localized content or language-specific fonts.
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