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Why Are iPhone Photos HEIC? (And How to Convert Them)
If you’ve ever AirDropped photos from your iPhone to a Windows PC, or tried to upload them to a website, you’ve probably hit a wall: “unsupported file type.” The culprit is almost always HEIC — the format your iPhone uses for photos by default.
Here’s what HEIC actually is, why Apple switched to it, and the simplest ways to deal with it.
What is a HEIC file?
HEIC stands for High Efficiency Image Container. It’s Apple’s take on the HEIF (High Efficiency Image Format) standard, which stores pictures compressed with the modern HEVC (H.265) codec. iPhones running iOS 11 or later (2017 onward) save photos as .heic by default.
The headline benefit is size: a HEIC photo is roughly half the size of the equivalent JPG at the same visual quality. It can also store things JPG can’t — depth maps, Live Photos, and wider HDR colour data.
Why does the iPhone use HEIC?
Three reasons:
- Storage. Photos are the biggest space hog on most phones. Halving photo size means twice as many pictures before you run out of room (or have to pay for iCloud).
- Quality. At the same file size, HEIF keeps more detail and colour than JPG, which is a decades-old format.
- Features. HEIC can bundle the extra data that modern iPhone camera features rely on.
Inside Apple’s own world — iPhone, iPad, Mac, the Photos app — HEIC is great and mostly invisible.
The problem: HEIC doesn’t open everywhere
The trouble starts the moment a photo leaves Apple’s ecosystem:
- Windows doesn’t open HEIC out of the box (older versions need a paid codec from the Microsoft Store).
- Older Android phones and many budget devices can’t display it.
- Upload forms — job applications, government portals, insurance claims, print services — frequently accept only JPG or PNG.
- Older editing software and plenty of websites simply reject the format.
So a format designed to save you space ends up costing you time.
Option 1: Make your iPhone shoot JPG instead
If you’d rather avoid HEIC for future photos, switch your camera to the universally compatible JPG:
- Open Settings → Camera → Formats
- Choose Most Compatible
From now on your iPhone shoots JPG. The trade-off: files are larger and you lose some of the modern HEIC features. (Picking High Efficiency switches back to HEIC.)
This only affects new photos — it does nothing for the hundreds of HEIC files already in your library.
Option 2: Convert the HEIC photos you already have
For existing photos, you need to convert them. Plenty of websites do this, but most online converters work by uploading your photos to their server, converting them there, and sending them back. For personal photos — which often contain faces, locations, and documents — that means handing your private images to a company you know nothing about.
A better approach is a converter that runs entirely in your browser, so your photos never leave your device. That’s exactly why we built Pixore: you drop in your HEIC files, they’re converted locally on your own machine (you can verify in your browser’s Network tab that nothing is uploaded), and you download the result. It’s free, needs no sign-up, and handles batches.
Pick the output format that fits what you’re doing:
- HEIC to JPG — the safe default. JPG opens literally everywhere and keeps files small. Best for sharing, email, and upload forms.
- HEIC to PNG — lossless quality with no compression artifacts. Best when you plan to edit the image or need maximum quality.
- HEIC to WebP — the smallest modern format, 25–35% smaller than JPG at the same quality. Best for putting images on a website.
HEIC to JPG, PNG, or WebP — which should you pick?
| If you want to… | Convert to |
|---|---|
| Share, email, or upload anywhere | JPG |
| Keep maximum quality / edit later | PNG |
| Use it on a fast-loading website | WebP |
When in doubt, choose JPG — it’s the most compatible image format on the planet.
Frequently asked questions
Does converting HEIC to JPG lose quality? Converting re-encodes the image, so technically there’s a tiny generational loss, but at a high quality setting it’s visually identical. If you need a truly lossless copy, convert to PNG instead.
Is it safe to convert photos online? It depends on the tool. Server-based converters upload your photos; browser-based ones like Pixore don’t — the conversion happens on your own device, so your images are never sent anywhere.
Can I convert many HEIC files at once? Yes. Pixore lets you drop several files in at once and download them all as a single ZIP.
That’s the whole story of HEIC: a clever space-saving format that’s wonderful inside Apple’s ecosystem and occasionally annoying outside it. Now you know how to switch it off for new photos — and convert the ones you already have, privately, in seconds.