iPhone · Platform guide
What Image Format Does iPhone Use?
Since iOS 11, Apple’s default Efficient setting stores HEIC/HEIF photos. Screenshots are usually PNG. Shared exports may already be JPG depending on the destination.
Quick take: Modern iPhones typically save photos as HEIC (High Efficiency Image Container). You can switch Camera settings to Most Compatible to shoot JPG instead.
Camera default
Settings → Camera → Formats → High Efficiency saves HEIC. Most Compatible saves JPG.
Screenshots & edits
Screenshots are typically PNG. Some share sheets recompress to JPG automatically.
Why it matters
HEIC is smaller on-device. Recipients on Windows/Android may need JPG.
Recommendations
Keep max quality in iCloud/Photos
Pick: HEIC (High Efficiency)
Smaller library without an obvious quality hit.
Constantly sharing to Windows PCs
Pick: Most Compatible (JPG) or convert on demand
Avoids “won’t open” replies.
Convert now
Turn compatibility advice into a file — processing stays in your browser.
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FAQ
Is HEIC the same as HEIF?
HEIC is Apple’s common container branding for HEIF stills. Extensions may show .heic or .heif.
Browse all platform guides or how to open files.