HEIC to AVIF Converter

HEIC (High Efficiency Image Container) is the photo format iPhones and iPads have used by default since iOS 11. It's Apple's flavor of the HEIF standard, compressed with the same HEVC technology used for 4K video.

A HEIC photo takes about half the space of a JPG at the same quality and can store extras like Live Photo frames and depth data. The catch is compatibility: Windows, many Android apps and most upload forms can't open it.

iPhone, iPad and Mac open HEIC natively. On Windows 10 or 11, install the free HEIF Image Extensions (and, on some PCs, the HEVC Video Extensions) from the Microsoft Store. Recent Android phones can view HEIC in their gallery. Anywhere else, convert it to JPG.

AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec, developed by the Alliance for Open Media - Google, Apple, Microsoft, Netflix and others. It typically produces smaller files than both JPG and WebP at the same visual quality.

AVIF supports transparency, HDR and wide color, which makes it a favorite for fast websites. Support outside browsers is still patchy, so downloaded AVIF files often need converting.

Chrome, Edge, Firefox and Safari 16+ display AVIF. Windows 11 opens it in Photos once the free AV1 Video Extension is installed; macOS Ventura and later preview it. For editors and forms that refuse it, convert to JPG or PNG.