Image Format Comparison

HEIC vs JPG: Apple's Default vs Universal Compatibility

HEIC (High Efficiency Image Container) is Apple's default photo format since iOS 11 and macOS High Sierra. It uses the HEVC codec to compress images roughly twice as efficiently as JPG while maintaining the same or better visual quality — meaning your iPhone can store twice as many photos in the same space. The catch is compatibility: outside the Apple ecosystem, HEIC is a nightmare. Windows requires a paid codec, Android can't open the files, and most websites and apps expect JPG.

HEICvsJPG

Quick Verdict

Use HEIC when…

Use HEIC when storing photos on your iPhone — it saves up to 50% storage space at equal or better quality compared to JPG. Apple's ecosystem handles it seamlessly.

Use JPG when…

Use JPG when sharing photos with anyone outside the Apple ecosystem — Windows users, Android phones, email recipients, or websites. JPG opens everywhere without plugins.

HEIC vs JPG: Feature Comparison

Feature	HEIC	JPG
Developed by	MPEG — used as Apple's default since iOS 11	Joint Photographic Experts Group — 1992
Compression efficiency	~50% smaller than JPG at equivalent visual quality	Baseline — HEIC is roughly twice as efficient
Transparency support	Yes — 16-bit alpha channel	No — no transparency support
Native support (non-Apple)	Limited — Windows 10/11 needs a paid codec; Android doesn't open it	Universal — every device, OS, browser, and app
Live Photos / Depth maps	Stores live photo motion and portrait depth in one file	Cannot store live photo or depth data
Web browser support	Safari only natively; others need conversion	All browsers universally

When HEIC wins

✓Developed by: MPEG — used as Apple's default since iOS 11
✓Compression efficiency: ~50% smaller than JPG at equivalent visual quality
✓Transparency support: Yes — 16-bit alpha channel

When JPG wins

✓Developed by: Joint Photographic Experts Group — 1992
✓Compression efficiency: Baseline — HEIC is roughly twice as efficient
✓Transparency support: No — no transparency support

Frequently asked questions

Why do my iPhone photos save as HEIC?

Apple switched to HEIC as the default in iOS 11 to save storage space. You can change this in Settings → Camera → Formats → Most Compatible to shoot JPG directly.

Can Windows open HEIC files?

Windows 10 and 11 can open HEIC with the free 'HEIF Image Extensions' codec from the Microsoft Store (search for it). Without this codec, HEIC files show as unsupported. Converting to JPG remains the most friction-free solution.

Does converting HEIC to JPG reduce quality?

Slightly. HEIC → JPG re-encodes using JPG's compression algorithm, which introduces a small amount of lossy degradation. At high quality settings (85+), the difference is not visible to the naked eye.

Should I shoot in HEIC or JPG on my iPhone?

HEIC if you stay within Apple products (Mac, iPhone, iPad, iCloud). JPG if you regularly share photos with Windows users, Android friends, or upload to websites that don't handle HEIC well.