What is a HEIC File?
Everything you need to know about Apple's High Efficiency Image Format
HEIC (High Efficiency Image Container) is a modern image format developed by Apple that uses advanced compression to store high-quality photos at roughly half the file size of JPEG. Introduced with iOS 11 in 2017, HEIC has become the default photo format for iPhone and iPad cameras.
Understanding HEIC Format
HEIC stands for High Efficiency Image Container, and it's based on the HEIF (High Efficiency Image Format) standard developed by the Moving Picture Experts Group (MPEG). Apple adopted this format in 2017 as the default for photos taken on iPhones and iPads running iOS 11 or later.
The format uses HEVC (High Efficiency Video Coding), also known as H.265, for compression. This advanced compression technology allows HEIC files to maintain excellent image quality while using significantly less storage space than traditional formats like JPEG.
Why Apple Chose HEIC
50% Smaller Files
HEIC files are roughly half the size of equivalent JPEG files, meaning users can store twice as many photos on their devices without sacrificing quality.
Better Quality
Despite smaller file sizes, HEIC maintains superior image quality with support for 16-bit color depth compared to JPEG's 8-bit limitation.
Advanced Features
HEIC supports transparency (like PNG), multiple images in one file, HDR photos, and Live Photos—all in a single container.
Modern Standard
As a newer format, HEIC is built for modern photography needs including depth maps, editing data, and computational photography.
HEIC vs JPEG: Key Differences
| Feature | HEIC | JPEG |
|---|---|---|
| File Size | 50% smaller ✓ | Larger |
| Image Quality | Superior ✓ | Good |
| Color Depth | 16-bit ✓ | 8-bit |
| Transparency | Yes ✓ | No |
| Compatibility | Limited | Universal ✓ |
| Browser Support | None | Full ✓ |
Benefits of HEIC Files
- ✓Smaller file sizes - Save 50% storage space on your iPhone or iCloud
- ✓Better image quality - Superior compression maintains detail and color accuracy
- ✓Transparency support - Like PNG but with much smaller file sizes
- ✓Multiple images - Store burst shots or Live Photos in a single file
- ✓HDR support - Better dynamic range for high-quality displays
- ✓Editing metadata - Stores editing history and depth information
Drawbacks of HEIC Files
- ✗Limited compatibility - Not supported outside Apple ecosystem and modern software
- ✗No web support - Cannot display in browsers, must convert for web use
- ✗Windows/Android issues - Requires special software or conversion to open
- ✗Sharing problems - Recipients without Apple devices may not be able to view files
When to Use HEIC vs JPEG
Use HEIC When:
- • Storing photos on your iPhone or iCloud
- • Sharing photos with other Apple users
- • Taking high-quality photos and need to save storage
- • Using photos within the Apple ecosystem (iMessage, Photos app)
Use JPEG When:
- • Sharing photos with non-Apple users
- • Uploading to websites or social media
- • Using photos in emails or documents
- • Maximum compatibility is needed
Need to Convert HEIC Files?
Use our free online converter to instantly transform HEIC files to JPEG, PNG, or PDF format.