How to Change iPhone Photos from HEIC to JPG
Your iPhone has been quietly saving every photo as HEIC — Apple's modern format that's 50% smaller than JPG but doesn't open on Windows, most websites, or older Android devices.
The fix takes 10 seconds. Here's the exact path, what each setting does, and what happens to your existing photos.
How to Change iPhone Camera Format to JPG
Navigate to this setting:
Tap the grey Settings icon on your iPhone home screen.
Camera is about two-thirds of the way down the Settings list, below Privacy.
Formats is the first option at the top of the Camera settings page.
A checkmark appears next to it. Done. New photos and videos will now save as JPEG and H.264 MP4 instead of HEIC and HEVC.
Already Have HEIC Photos? Convert Them Free
The setting change only affects new photos. Convert existing HEIC files to JPG instantly in your browser.
High Efficiency vs Most Compatible — What's the Difference?
| Setting | High Efficiency | Most Compatible |
|---|---|---|
| Photo format | HEIC | JPEG |
| Video format | HEVC (H.265) | H.264 |
| Photo file size | ~2–4 MB | ~4–8 MB |
| Storage impact | Saves ~50% space | Uses more storage |
| Opens on Windows | Needs codec/converter | Yes, natively |
| Opens on Android | Modern Android only | All devices |
| Web uploads | Often rejected | Always accepted |
| Photo quality | Slightly better | Excellent (no visible difference) |
What Happens to Existing HEIC Photos?
Changing the format setting only affects new photos taken after the change. Photos already saved as HEIC on your device remain HEIC — the setting change does not retroactively convert them.
To convert existing HEIC photos to JPG:
- Browser converter — Transfer the HEIC files to your computer and convert at convertlo.pro/heic-to-jpg.html. Free, batch converts multiple files, your photos never leave your computer.
- On Mac — Open in Preview, then File → Export as JPEG.
- Email or AirDrop trick — Share a HEIC photo to yourself via email or AirDrop to a Mac. iOS automatically converts to JPEG when sharing to non-Apple destinations.
The Smart Compromise: Keep HEIC on Device, Auto-Convert When Transferring
You don't have to choose between storage efficiency and compatibility. iOS has a hidden option that keeps HEIC on your device (saving storage) but automatically converts to JPG when you transfer photos via USB cable:
- Go to Settings → Photos.
- Scroll to Transfer to Mac or PC.
- Select Automatic.
With this setting, USB transfers to Windows will automatically deliver JPEG files. HEIC photos remain on your iPhone for storage efficiency, but Windows gets compatible JPEGs every time.
Should You Use HEIC or JPG on iPhone?
The honest answer depends on your situation:
- Use HEIC (High Efficiency) if your phone storage is constantly full, you primarily share photos with other iPhone/Mac users, and you use iCloud Photos (Apple handles compatibility in iCloud).
- Use JPG (Most Compatible) if you frequently send photos to Windows users, upload to websites or social platforms, use editing software that may not support HEIC, or are less technically inclined and want everything to "just work."
What the iPhone Actually Shoots vs What Gets Shared
When you leave the camera set to High Efficiency, the iPhone shoots HEIC internally. Apple chose this because HEIC can squeeze the same visual quality into roughly half the file size of JPEG — a real advantage when you're shooting dozens of photos on a trip.
But here's what a lot of people don't realize: iOS operates a quiet translation layer between "what's stored on device" and "what gets sent out." When you tap Share and pick Messages or email, iOS looks at what the receiving app is asking for. Most third-party apps request JPEG, so iOS converts on the fly before the file leaves your phone. You never see this happen — the HEIC original stays put in your Camera Roll while a freshly-converted JPEG gets delivered to the app.
AirDrop to a Mac behaves differently. Because macOS can open HEIC natively, iOS skips the conversion and sends the original. That's usually fine, but if you're AirDropping to a colleague's older Mac or you need the file to be JPEG for a specific workflow, you may get a surprise when the file lands as .heic.
The "Most Compatible" setting cuts through all of this by shooting JPEG from the start. There's no conversion layer, no guessing what the destination can handle — the photo is already JPEG when it's captured. If you spend any real time moving photos between devices or uploading them to things other than iCloud, that simplicity is worth the modest increase in file size.
Live Photos and ProRAW — What Actually Gets Saved
The format setting governs more than just still photos. A Live Photo isn't a single file — it's a pair: one HEIC (or JPEG, if you're on Most Compatible) plus a short .MOV video clip captured in the half-second before and after the shutter. When you share a Live Photo as a still, iOS sends just the JPEG portion. When you share it as a Live Photo to a compatible destination like iMessage, both files travel together. The video half is always H.264 or HEVC depending on your video format setting.
ProRAW is a different story. It's Apple's 48-megapixel DNG format available on iPhone 12 Pro and later when you enable it under Settings → Camera → Formats → Apple ProRAW. ProRAW ignores the HEIC/JPEG toggle entirely — it's its own thing. When you share a ProRAW file, the recipient gets a DNG, which is a format most photo editors understand but that Windows Photos and most social platforms do not. If you're shooting ProRAW for post-processing, plan to export a finished JPEG from the edit before sharing anywhere other than Lightroom or Photoshop.
One thing that catches people out: if you email a ProRAW photo from the Photos app without editing it first, iOS sends the full DNG file, which can be 50–75 MB per shot. For casual sharing, always edit and export as JPEG before sending ProRAW images anywhere.