Why Are My Photos HEIC Instead of JPG?
Your photos are HEIC because your iPhone or iPad has saved photos in Apple's High Efficiency format by default since iOS 11 in 2017. It is a camera setting, not something you did. HEIC files take about half the space of JPG at the same quality, but many apps, websites and devices cannot open them.
You did not change anything, and you did not download some strange app. Apple made the decision for you, quietly, in a settings screen most people never open. Here is exactly where that setting lives, how to switch back to JPG if you want to, and what to do with the HEIC photos already sitting in your camera roll.
The setting that causes it
Open Settings > Camera > Formats on your iPhone and you will find two options:
- High Efficiency: photos are saved as HEIC. This has been the factory default since iOS 11, on hardware from roughly the iPhone 7 onward.
- Most Compatible: photos are saved as JPG, the format every device, website and printer has understood since the 1990s.
Since the default is High Efficiency and almost nobody visits this screen, virtually every iPhone photo taken since late 2017 is a HEIC file. This is not only an Apple thing anymore, either: some newer Android phones, such as Samsung Galaxy models from the S10 onward, offer a similar HEIF option in their camera settings, though it is usually off by default.
Not sure which format a photo is? On the iPhone, open it in the Photos app and swipe up (or tap the info button); the format is listed alongside the resolution. On a computer, just look at the file extension: .heic means High Efficiency, .jpg means Most Compatible.
How to make your iPhone shoot JPG again
If you would rather never think about HEIC again, the fix takes ten seconds:
- Open Settings and tap Camera.
- Tap Formats.
- Select Most Compatible.
Every photo you take from now on will be a JPG. There is also a middle path: keep shooting HEIC to save space, but go to Settings > Photos > Transfer to Mac or PC and choose Automatic. Your iPhone then converts photos to JPG on the fly whenever you copy them to a computer over USB, so your PC only ever sees JPGs.
One important catch with both tricks: they do nothing for the photos you already have. Everything taken while High Efficiency was on stays HEIC in your camera roll.
Switching to Most Compatible roughly doubles the storage each new photo uses. If space on your iPhone is tight, the smarter setup is often to keep High Efficiency on and convert only the photos you actually need to share.
What to do with the HEIC photos you already have
There is no need to convert your whole library; HEIC works perfectly inside Apple's ecosystem. Convert the photos that need to leave it: the ones going to a web form, a Windows user, a print shop or an older app that refuses the file.
The quickest way is to select several photos at once and batch convert HEIC to JPG online. The conversion starts automatically the moment the upload finishes (there is no convert button), each JPG comes back at full resolution with its EXIF data intact, and you can download everything as one ZIP. No software, no account, and the whole batch takes seconds.
High Efficiency vs Most Compatible at a glance
| Setting | Format | File size | Compatibility | Best for |
|---|---|---|---|---|
| High Efficiency | HEIC | About half of JPG | Apple devices and modern apps; many websites, printers and older devices fail | Saving storage on your phone |
| Most Compatible | JPG | Roughly double HEIC | Universal: every device, browser and kiosk since the 1990s | Frequent sharing, uploads and printing |
Apple flipped the default in 2017 for a very practical reason: iPhones were filling up with photos, and storage upgrades were expensive. HEIC cut the size of the camera roll roughly in half without any visible quality loss, which meant fewer "Storage Almost Full" warnings. Compatibility with the rest of the world was the price.
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