AVIF (AV1 Image File Format) is a modern, open-source image format that offers superior compression compared to older formats like JPEG and PNG. It is based on the AV1 video codec, developed by the Alliance for Open Media (AOM), which includes tech giants like Google, Apple, and Microsoft.

The primary advantage of AVIF is its ability to drastically reduce file sizes—often by 50% or more—while maintaining, or even improving, visual quality. This means:

• Faster loading for your website pages.
• Reduced bandwidth consumption for you and your visitors.
• Support for advanced features like high dynamic range (HDR) and wide color gamuts.

While support is growing rapidly in modern browsers (Chrome, Firefox, Edge), older browsers, like Internet Explorer, do not support AVIF. For web use, it's often recommended to serve AVIF images with a JPEG or PNG fallback using HTML's <picture> element to ensure compatibility for all users.

In summary, adopting AVIF for your website images is a powerful step toward optimizing performance and user experience without sacrificing visual fidelity.