HEIC vs JPG: What's the Difference and Which Should You Use?

Published July 6, 2026

Every photo your iPhone takes is saved as HEIC, while most of the internet still runs on JPG. Both store the same picture — so what's actually different, and does it matter for you? Here's the plain-English version.

What is HEIC?

HEIC (High Efficiency Image Container) is a modern image format that Apple adopted as the iPhone default in 2017 with iOS 11. It uses far more advanced compression than JPG, storing the same photo at roughly half the file size with equal or better quality. It also supports features JPG can't match: 16-bit color, transparency, and storing multiple images in one file (which is how burst photos and Live Photos work).

What is JPG?

JPG (or JPEG) has been the world's standard photo format since 1992. Its compression is less efficient by modern standards, but its superpower is universal compatibility: every device, browser, website, printer kiosk, and office application made in the last 25+ years opens JPG without question.

Head-to-head comparison

File size

HEIC wins clearly. A typical 12-megapixel photo is 3–4 MB as HEIC versus 6–8 MB as JPG. Across thousands of photos, that's real storage savings — the main reason Apple made the switch.

Image quality

At the same file size, HEIC preserves more detail and handles gradients (like skies) with less banding. In practice, both look identical to the naked eye at normal sizes.

Compatibility

JPG wins by a landslide. Windows needs extra codecs for HEIC, many Android apps ignore it, most websites' upload forms reject it, and photo printing services often can't process it. JPG works everywhere, every time.

So which should you use?

Keep HEIC for photos living on your iPhone or in iCloud — you get the storage savings and lose nothing. Use JPG the moment a photo leaves the Apple ecosystem: emailing to a Windows user, uploading to a website, printing at a shop, or archiving files you want readable decades from now.

Does converting HEIC to JPG lose quality?

Technically yes — JPG re-compresses the image — but at a 90% quality setting the difference is invisible in normal use. Only crops enlarged to extremes would reveal it. If you need a pixel-perfect copy, convert to PNG instead, which is lossless (at the cost of much larger files).