HEIC
High Efficiency Image Container
MIME type: image/heic
HEIC is Apple's default image format since iOS 11 and macOS High Sierra. It uses HEVC (H.265) compression to produce images that are roughly half the size of equivalent JPEG files while maintaining the same visual quality.
Advantages
- +50% smaller than JPEG at same quality
- +Supports 16-bit color depth
- +Stores multiple images (Live Photos, bursts)
- +Supports transparency and depth maps
Limitations
- -Limited browser support (no native web support)
- -Requires conversion for most platforms
- -Patent-encumbered (HEVC licensing)
- -Not supported by many image editors
Common Use Cases
Technical Details
HEIC is a container format based on ISO Base Media File Format (ISOBMFF/MPEG-4 Part 12). It uses HEVC (H.265) intra-frame coding for compression. A single HEIC file can contain multiple images, thumbnails, and metadata. Apple's implementation includes depth maps from dual cameras and Live Photo motion data. The format supports both lossy and lossless compression modes.
Frequently Asked Questions
How do I open a HEIC file on Windows?
Windows 10/11 can open HEIC files after installing the HEIF Image Extensions from the Microsoft Store. Alternatively, convert HEIC to JPG using BriskTool's free converter — no upload needed.
Why does my iPhone save photos as HEIC?
Apple uses HEIC by default because it produces files roughly half the size of JPEG at the same quality, saving significant storage space. You can change this in Settings → Camera → Formats → Most Compatible.