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 iPhone setting that saves your photos as HEIC
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 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. The Samsung section below shows how to turn it off.
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 (on iOS 18 and later: Settings > Apps > Photos) 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.
Here is the whole switch at a glance, including the catch most people miss:
HEIC on Samsung, other Android phones and PCs
Not every HEIC comes from an iPhone camera. If the files show up on an Android phone or a Windows PC, one of three things is usually behind it.
Your Samsung Galaxy shoots HEIC
Samsung has offered a High efficiency pictures switch in its camera since the Galaxy S10 generation, and some Xiaomi and OPPO phones have a similar HEIF option. It is off by default, but once it is on, every new photo is saved as .heic. To switch back, open the Camera app, tap the settings gear, open Advanced picture options (called Picture formats or Save options on some older One UI versions) and turn off High efficiency pictures. New photos are JPG again; the ones you already took stay HEIC. For those, Samsung Gallery has a Convert HEIF images when sharing setting, and our guide on how to change HEIC to JPG on Android covers seven more ways.
Someone sent you the original iPhone file
Chat apps usually convert photos to JPG on the way, but anything that moves the original file does not: Google Drive, Dropbox, an iCloud link, AirDrop to a Mac, an email sent at actual size or a messaging app in document mode. The HEIC arrives exactly as the iPhone stored it, so the setting that matters is on the sender's phone, not yours.
Your PC downloaded the originals
On Windows, HEIC files usually come from a cable transfer with Keep Originals selected on the iPhone, or from iCloud. In iCloud for Windows, the Photos options include Keep high efficiency original if available; uncheck it and new downloads arrive as JPG. When you download from iCloud.com, the download options let you pick Most Compatible, which gives you JPEG files instead of HEIC.
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.
Before you flip the switch, it is worth seeing what Most Compatible costs in storage:
Quirks worth knowing before you switch
The Formats setting looks like a simple two way switch, but iOS bends the rules around it in a few places. None of them are dealbreakers, but each one explains a moment of confusion later. Five things worth knowing before you change it:
- Screenshots are unaffected. iOS saves screenshots as PNG no matter what this setting says. If most of what you send people is screenshots, the Formats setting was never your problem.
- High frame rate video flips the setting back. Recording 4K at 60 fps or 1080p at 240 fps requires High Efficiency, so the iPhone switches it back for you the moment you pick those modes. If HEIC files keep appearing in your camera roll even though you chose Most Compatible, a video mode is usually the reason.
- Sharing usually converts anyway. Mail, WhatsApp, Instagram and Messenger convert HEIC to JPG on their own when you share a photo; AirDrop between Apple devices keeps the original HEIC. That is why a friend can open your photo in WhatsApp without ever seeing a HEIC: the app already swapped it for a JPG.
- ProRAW and pro formats are separate. ProRAW saves DNG files and ignores this toggle entirely. If you shoot ProRAW on a Pro model, changing Formats will not touch those files.
- The storage bill is real. JPG roughly doubles how fast your camera roll grows, and on a 64 or 128 GB iPhone that adds up within months. The chart above puts numbers on it: about 17 GB versus about 32 GB for the same 10,000 photos.
Quick answers
Will switching to Most Compatible convert the HEIC photos I already have?
No. The setting only affects new shots; everything already in your camera roll stays HEIC. When you need JPGs of those, convert them with the online converter in one batch: each JPG comes back at full resolution with its EXIF data intact, and the whole batch downloads as one ZIP.
Why does my iPhone sometimes send a JPG even in High Efficiency mode?
Because iOS quietly converts on many share paths: Mail and most messaging apps do it automatically, and USB transfer to a computer converts too when Settings > Photos > Transfer to Mac or PC is set to Automatic. The format on the phone and the format that arrives at the other end are two separate questions, which is why the problem can seem to appear and disappear at random. If you want to control it yourself, our guide on how to convert HEIC to JPG on iPhone lists every option, from Safari to Shortcuts.
Is JPG quality worse than HEIC?
At the sizes phones produce, the two look visually equivalent. HEIC’s advantage is smaller files and extra features such as depth data and 16 bit color, not sharper images. The full comparison, including which one to pick as a long term default, is in HEIC vs JPG.
How do I remove the HEIC format for good?
On an iPhone, set Settings > Camera > Formats to Most Compatible; on a Samsung Galaxy, turn off High efficiency pictures in the camera settings. Both only change new photos, so convert the HEIC files you already have in one batch with the free converter and keep the originals if you want the smaller archive copies.
Why are my Samsung photos HEIC?
Because the camera's High efficiency pictures option is switched on. Open the Camera app, tap the settings gear, go to Advanced picture options and turn it off. New photos are then saved as JPG again.
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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