Do I Really Need HEIC? How to Check and Convert It on Any Device

HEIC appeared on iPhones in 2017 and has been quietly confusing everyone since. Here's the practical version: what it is, whether you need it, and what to do when it's in your way.

What HEIC actually is

HEIC (High Efficiency Image Container) stores the same quality as JPEG at roughly half the file size. Your iPhone uses it so a 48 MP photo doesn't eat your storage. If you want the full technical background, I wrote a detailed breakdown of what HEIC is and whether you need it — short version: it's great for phones, terrible for sharing.

Do you need it?

• Keeping it: if you never leave the Apple ecosystem, HEIC saves real storage. Leave the camera setting alone.
• Ditching it: if you regularly send photos to Windows users, Android phones, or work systems, switch to "Most Compatible" in Settings → Camera → Formats. Existing HEIC photos won't change — only new ones.

How to check a file's format

• iPhone: open the photo, swipe up — the format shows under the date.
• Windows: right-click → Properties → Details, or just try to open it. If Photos shows an error about a missing codec, it's HEIC.
• Mac: Get Info shows "HEIC image".

Converting existing HEIC files: pick your method

Method	Cost	Uploads files?	Best for
Browser local converter	Free	No	A handful of files, no install
iPhone Shortcuts automation	Free	No	Recurring conversions on the phone
Desktop batch tool	Free/paid	No	Hundreds of files at once
Online upload converter	"Free"	Yes	Nothing — avoid for personal photos

For a handful of files, browser conversion is fastest — no install, no account. I built FileOnTap for this: files are converted on your device and never uploaded, which is the part that matters for personal photos.

For bulk archives, convert by folder and keep the originals until you've verified the copies. Rule of thumb: JPEG for photos you'll share, PNG for screenshots and anything with text.

Per-device walkthrough

Windows 10/11: try opening the file in the Photos app first. If you get a codec error, just convert the files to JPG in the browser and they'll open everywhere.

Android: Google Photos opens HEIC on some phones and not others. Convert to JPG before uploading and you skip the guessing.

Mac: Preview opens HEIC natively. Use File → Export for a single file, or a browser tool for batches.

The storage math

A typical iPhone photo is ~2–4 MB in HEIC and ~5–10 MB as JPEG. For a 10,000-photo library, that's the difference between ~30 GB and ~70 GB. HEIC earns its keep on the device; the conversion tax only applies to the files you actually need to share.

FAQ

Will converting reduce quality? HEIC→JPG at high quality is visually lossless. HEIC→PNG is fully lossless.

Is HEIC going away? No — it's an ISO standard, and Android flagships now shoot in it too. The compatibility gap is slowly closing, but it'll annoy people for years.

One setting to check today

The single most common HEIC headache: a friend with an iPhone sends photos to a Windows PC and nothing opens. Five seconds in the sender's Camera settings prevents it. The format itself isn't the enemy — the default is.

Disclosure: I'm the developer of FileOnTap.