Image Format Comparison

HEIF vs PNG — Modern Container vs Lossless Standard

HEIF (High Efficiency Image Format) is the modern container holding HEVC-compressed images — Apple's iOS 11+ default. PNG is the universal lossless image format for the web. HEIF achieves much smaller file sizes than PNG for photographs, but PNG dominates the web due to universal browser support.

HEIFvsPNG

Quick Verdict

Use HEIF when…

Use HEIF on Apple devices and modern Android — smaller file sizes mean more photos in the same storage. Photos app, iMessage, and AirDrop handle HEIF natively.

Use PNG when…

Use PNG for web graphics, screenshots, logos, and any context requiring lossless quality with universal browser support. PNG is the default for non-photographic content on the web.

HEIF vs PNG: Feature Comparison

Feature	HEIF	PNG
Compression	HEVC (lossy or lossless)	DEFLATE (lossless)
File size (24MP photo)	~3 MB	~30 MB
Transparency	Yes (alpha channel)	Yes (alpha channel)
Bit depth	Up to 16-bit	Up to 16-bit
Browser support	Safari only natively	Universal
Use case	Mobile photo storage	Web graphics, screenshots

When HEIF wins

✓Compression: HEVC (lossy or lossless)
✓File size (24MP photo): ~3 MB
✓Transparency: Yes (alpha channel)

When PNG wins

✓Compression: DEFLATE (lossless)
✓File size (24MP photo): ~30 MB
✓Transparency: Yes (alpha channel)

Frequently asked questions

Is HEIF replacing PNG?

No — for different reasons. HEIF excels at photographs (where lossy compression is acceptable). PNG dominates non-photographic content (logos, screenshots, line art) where lossless quality matters. Both formats coexist in their respective domains.

How do I convert HEIF to PNG?

macOS: Preview → File → Export → Format: PNG. Command line: `sips -s format png input.heic --out output.png` (macOS) or `magick input.heic output.png` (ImageMagick anywhere).