Image Format Comparison

HEIC vs PNG: Efficient iPhone Format vs Lossless Standard

HEIC and PNG represent opposite philosophies: HEIC maximises compression for photographic images at the cost of some quality and compatibility; PNG maximises quality and compatibility at the cost of file size. They're rarely competing for the same use case — HEIC is a camera format, PNG is a screen-and-design format — but understanding the differences helps when deciding whether to convert your iPhone photos.

HEICvsPNG

Quick Verdict

Use HEIC when…

Use HEIC to keep iPhone photos on Apple devices — maximum quality at minimum storage. Let iOS handle HEIC automatically.

Use PNG when…

Use PNG when you need lossless quality, transparency, or guaranteed compatibility with all software. Convert HEIC to PNG for design work, editing, or sharing with non-Apple users.

HEIC vs PNG: Feature Comparison

Feature	HEIC	PNG
Compression	Lossy (HEVC) — ~50% smaller than JPG at same quality	Lossless — every pixel preserved exactly
Transparency	Supported	Full alpha channel — best transparency support
File size (12MP photo)	2–4 MB	15–30 MB (much larger due to lossless)
Compatibility	Apple-native; Windows/Android need conversion	Universal — every app, device, and platform
Best for	iPhone camera photos, storage efficiency	Screenshots, design assets, images requiring re-editing
Quality on re-save	Degrades (lossy format)	No degradation (lossless)

When HEIC wins

✓Compression: Lossy (HEVC) — ~50% smaller than JPG at same quality
✓Transparency: Supported
✓File size (12MP photo): 2–4 MB

When PNG wins

✓Compression: Lossless — every pixel preserved exactly
✓Transparency: Full alpha channel — best transparency support
✓File size (12MP photo): 15–30 MB (much larger due to lossless)

Frequently asked questions

Should I convert iPhone photos from HEIC to PNG?

Only if you specifically need lossless quality or transparency. Converting HEIC to PNG gives you a lossless copy, but at 5–10× the file size of HEIC with no visible quality improvement for typical photos. If you need to use iPhone photos in design software, share without compatibility issues, or edit repeatedly, PNG is worth the size cost. For everyday sharing, HEIC or JPG is more practical.

Is HEIC better quality than PNG?

No — PNG is a lossless format and mathematically preserves more quality than HEIC, which is lossy. However, HEIC is designed for photographic content where the quality difference at its default settings is imperceptible. PNG's lossless advantage matters for images with text, sharp geometric shapes, and repeated editing — not for typical photos.