How to Stop Your iPhone Saving Photos as HEIC
If you’re tired of your iPhone photos refusing to open on Windows, in old apps, or on upload forms, the root cause is the HEIC format your camera uses by default. The good news: you can switch your iPhone back to plain JPG in about 30 seconds. Below is the exact setting, the trade-off you’re accepting, and what to do about the HEIC photos you’ve already taken.
The 30-second fix: switch to “Most Compatible”
Here’s the step-by-step. It’s the same on every iPhone running iOS 11 or later (so basically any iPhone made since 2017):
- Open the Settings app.
- Scroll down and tap Camera.
- Tap Formats (it’s the first option).
- Select Most Compatible.
That’s it. From this moment on, every new photo you take is saved as a standard JPG, and every video as H.264 MP4 — both of which open everywhere without any extra software.
The other option, High Efficiency, is Apple’s default. It’s what produces those .heic files in the first place. If you ever want to understand why Apple chose it, I’ve broken it down in why your iPhone photos are HEIC.
How to confirm it worked
Take one test photo, then connect your iPhone to a computer or AirDrop the image to yourself. The file should now end in .jpg instead of .heic. In my testing, the change takes effect immediately — no restart needed.
The trade-off: you’ll use more storage
I want to be straight with you, because most articles skip this part. Switching to Most Compatible isn’t free. JPG is a 30-year-old format, and it’s roughly twice the file size of HEIC for the same image quality.
In practical terms, here’s what that looks like:
| High Efficiency (HEIC) | Most Compatible (JPG) | |
|---|---|---|
| Typical 12MP photo size | ~1.5–2 MB | ~3–4 MB |
| Compatibility (Windows, web, old apps) | Poor — often needs converting | Excellent — opens everywhere |
| Color depth / HDR | 10-bit, full HDR | 8-bit only |
| Live Photos | Supported | Supported (motion saved separately) |
| Best for | Saving space on Apple devices | Sharing and editing anywhere |
So if you shoot a lot and your iPhone is already low on space, you’ll notice it fill up faster. For a deeper side-by-side, see my full comparison of HEIC versus JPG quality and size.
My honest recommendation: if storage is tight, I’d actually leave the iPhone on High Efficiency and just convert the handful of photos you need to share. You keep the space savings on your phone and only pay the JPG “tax” on the images that actually leave it. But if compatibility headaches drive you crazy and you have storage to spare, Most Compatible is the set-it-and-forget-it answer.
What about the photos you’ve already taken?
Changing the setting only affects future photos. Every picture already in your library stays as a HEIC. You don’t need to retake anything — you just convert the ones you want in a universal format.
The fastest, safest way is to convert them in your browser, with no upload involved:
- HEIC to JPG — the everyday choice, opens on literally anything.
- HEIC to PNG — lossless, ideal if you’ll edit the image.
- HEIC to PDF — great for stitching receipts or documents into one file.
- HEIC to WebP — smaller files for websites.
Everything runs 100% on your device, so the photos never touch a server, and GPS and other EXIF metadata are stripped during conversion. If you’ve ever wondered whether browser converters are trustworthy, I cover exactly what happens to your files in is it safe to convert HEIC online and the technical proof on the how it works page.
If you only need to see a HEIC without converting it — say someone sent you one — drop it into the HEIC viewer and it renders instantly.
The setting most people miss: Transfer to Mac or PC
Here’s a second setting that trips up nearly everyone, and it lives a little lower in that same Camera menu. Even on Most Compatible, your existing library is full of HEICs, and how those get exported when you plug into a computer depends on Transfer to Mac or PC:
- Go to Settings → Photos.
- Scroll to the bottom to Transfer to Mac or PC.
- Choose between:
- Automatic — your iPhone converts HEIC photos to JPG on the fly as it copies them to a non-Apple device. This is what you usually want when moving photos to a Windows PC.
- Keep Originals — copies the raw
.heicfiles exactly as they are, even to Windows.
This is the single most common reason people say “I set my camera to JPG but I’m still getting HEIC files on my PC.” Their old photos are being transferred with Keep Originals. Flip it to Automatic and your iPhone handles the conversion for you during import.
A quick caveat from experience: Automatic conversion happens during a wired or Photos-app transfer. It does not apply to AirDrop or files you upload to cloud services, which usually keep the original HEIC. For those, converting manually is still the reliable route.
Quick recap
- Settings → Camera → Formats → Most Compatible makes your iPhone shoot JPG from now on.
- You’ll use roughly twice the storage per photo — the trade-off for universal compatibility.
- Already-taken HEICs stay HEIC. Convert the ones you need with a browser-based HEIC to JPG tool.
- Set Settings → Photos → Transfer to Mac or PC to Automatic so existing photos arrive as JPG on a computer.
If you’re on Windows and just need today’s batch open right now, my walkthrough on opening HEIC files on Windows 11 covers every option, from built-in extensions to one-click conversion.