WOFF, or Web Open Font Format, is a font format designed for use on the web. It allows web designers to embed custom fonts in their websites, ensuring that text appears consistently across different browsers and devices. WOFF compresses font files, making them smaller and faster to load, which improves website performance. The format was developed by the W3C Web Fonts Working Group and is widely supported by modern web browsers. WOFF files typically contain TrueType or OpenType font data, along with additional metadata. This enables better control over font rendering and licensing, enhancing the overall user experience.