Why Your iPhone Takes HEIC Photos — and When to Change It
Since iOS 11 (2017), every iPhone saves photos as .HEIC files by default. Apple did it for a genuinely good reason — HEIC photos are about half the size of JPEGs at the same quality — but the format has spent the years since creating friction with Windows PCs, printers, websites, and older Android phones. Here's the full picture.
What HEIC actually is
HEIC (High Efficiency Image Container) is a container format based on the same ISO standard as MP4 video. Inside, the photo is compressed with HEVC (H.265) — the same codec used for 4K video. That's the trick: video codecs are extremely efficient at compressing frames, and a photo is just one frame. The result is a 12-megapixel iPhone photo in 1–2 MB instead of 3–5 MB as JPEG, with equal or better quality.
Why Apple made it the default
Storage. Photos are the single largest consumer of iPhone storage, and iCloud storage is a major upsell for Apple. Halving photo size doubles how many photos fit on a 128 GB phone and halves iCloud bandwidth. You get a technically superior format; Apple gets smaller storage bills and cheaper iCloud sync. Everyone wins except compatibility.
Where HEIC causes problems
- Windows PCs without the optional HEIF/HEVC codecs — the most common complaint. See HEIC won't open on Windows.
- Websites and upload forms that accept only JPEG/PNG.
- Older software — some photo editors, print kiosks, and office tools pre-2020 can't read it.
- Sharing to non-Apple devices — though the iPhone usually auto-converts on share if you leave the format setting on Automatic.
How to switch your iPhone back to JPEG
- Open Settings → Camera → Formats.
- Select Most Compatible.
New photos will be JPEG. Existing HEIC photos stay HEIC — convert them with the converter if needed. Also note: High Efficiency is required for ProRAW and some burst/Live Photo features, and 4K/60fps or 1080p/240fps video always uses HEVC regardless of this setting.
Convert existing HEIC photos — free, batch, and nothing ever leaves your device.
Convert existing HEIC photosFrequently asked questions
Is HEIC better than JPG?
Technically yes — half the size at equal quality, plus support for 10-bit color, bursts, and depth data. Practically, JPG wins on compatibility: it opens literally everywhere.
Why did my iPhone suddenly start making HEIC files?
It didn't suddenly start — HEIC has been the default since iOS 11. If photos are newly appearing as HEIC on another device, something changed on that side (e.g., a Windows reinstall lost the HEIF codec extensions).
Do HEIC files lose quality compared to RAW?
Yes. HEIC is still a processed, compressed photo — Apple's computational pipeline (HDR merging, noise reduction) applied. For full editing latitude shoot ProRAW/DNG instead.
Can I convert my existing HEIC photos to JPG?
Yes — all at once with the batch converter on heictap.com, in your browser, without uploading anything.