What Is a HEIC File? A Complete Guide

A HEIC file is a photo saved in Apple’s modern, space-saving image format. If you own an iPhone, almost every picture you take is a HEIC file — and if you’ve ever tried to open one on Windows or Android, you’ve probably run into trouble.

This guide explains exactly what a HEIC file is, how it works, why Apple uses it, and how to open or convert one on any device.

What is a HEIC file?

A HEIC file is a high-efficiency image that stores a photo at roughly half the size of a JPEG, with the same or better quality.

Apple adopted it as the default camera format on iPhones and iPads in 2017. It’s why your photos end in .heic instead of .jpg.

A HEIC file is Apple’s high-efficiency photo format, used on iPhones since iOS 11 to store images at about half the size of JPEG.

There are two extensions you may see. .heic holds a single image (or the main image of a photo). .heics holds an image sequence, like a burst or a Live Photo.

What does HEIC stand for?

HEIC stands for High Efficiency Image Container. You’ll sometimes see it written as High Efficiency Image Coding or File — they all point to the same thing.

The “container” part matters. A HEIC file isn’t just a single picture; it’s a wrapper that can hold an image plus extra data like a depth map, thumbnails, and metadata.

HEIC vs HEIF vs HEVC: what’s the difference?

This is where almost everyone gets confused, because the three terms are related but not the same.

HEIF — the container

HEIF (High Efficiency Image File Format) is the underlying standard, defined by the MPEG group as ISO/IEC 23008-12. It’s the box that holds the image and its extras.

HEVC — the compression

HEVC (also called H.265) is the video-compression technology used to shrink the image inside that box. It’s the same codec used for 4K video.

HEIC — the file

HEIC is what you get when you put an HEVC-compressed image inside a HEIF container. In other words, every HEIC file is a HEIF file, but not every HEIF file is a HEIC.

How does HEIC save so much space?

HEVC compresses far more cleverly than the decades-old JPEG method. Instead of storing every block of the image on its own, it predicts blocks from their neighbors and only stores the differences.

The result: a HEIC photo is typically about 50% smaller than the same photo saved as JPEG, with no visible loss in quality. On a phone full of photos, that saves gigabytes.

What can a HEIC file store?

A HEIC file can do a lot more than a JPEG. That flexibility is a big reason Apple chose it.

Higher color depth

JPEG is locked to 8-bit color. HEIC can store up to 16-bit color, which means smoother gradients and fewer visible bands in skies and shadows.

Transparency and depth

HEIC supports an alpha channel for transparency, and a depth map — the data that powers Portrait mode and background blur.

Live Photos and sequences

Because it’s a container, a HEIC file can hold a sequence of images: bursts, Live Photos, and cinemagraphs all live comfortably inside it.

Why does my iPhone save photos as HEIC?

Apple switched to HEIC with iOS 11 and macOS High Sierra in 2017, and it’s been the default ever since.

The motivation was simple: fit twice as many photos on the same phone without sacrificing quality, while also supporting newer features like Live Photos and Portrait depth.

The catch is compatibility. HEIC is excellent inside Apple’s world and awkward everywhere else.

HEIC vs JPG: which is better?

This is the question most people are really asking. The honest answer: it depends on what you’re doing with the photo.

	HEIC	JPG
File size	~50% smaller	Larger
Color depth	Up to 16-bit	8-bit only
Transparency	Supported	Not supported
Compatibility	Apple-first	Universal
Best for	Storing photos	Sharing photos

When HEIC is better

Keep photos as HEIC when they live on your iPhone, iPad, or Mac. You get smaller files and richer data with zero downside inside Apple’s ecosystem.

When JPG is better

Convert to JPG the moment a photo needs to leave that ecosystem — to email it, upload it to a website, or send it to a Windows or Android user.

Pros and cons of HEIC

The upsides

• Half the size of JPEG at the same quality.
• Richer data: 16-bit color, transparency, depth maps, Live Photos.
• Future-friendly, built on a modern standard.

The downsides

• Poor compatibility outside Apple devices.
• Many websites, apps, and email clients reject it.
• Sometimes needs extra codecs to open on Windows.

How much storage does HEIC actually save?

The savings are bigger than they sound. A typical 12-megapixel iPhone photo is around 2–3 MB as a HEIC, versus 4–6 MB as a JPEG of the same quality.

Across a library of a few thousand photos, that’s the difference between a full phone and one with room to spare. It’s a big reason Apple could keep default photo quality high without putting more storage in every iPhone.

The exact ratio varies with the image — busy, detailed scenes compress less than smooth ones — but the rule of thumb holds: a HEIC file is about half the size of the same JPEG.

Does converting cancel out the savings?

Partly. If you convert a HEIC to JPG, the resulting JPG is larger than the HEIC was. That’s a fair trade for a file that opens anywhere, but it’s a good reason to keep your originals as HEIC and only convert the copies you actually need to share.

Can you edit a HEIC file?

Yes. On Apple devices, HEIC edits just like any photo in Photos or Preview. Recent versions of Photoshop and Lightroom also open 8-bit HEIC files directly.

The limits show up with higher bit depths and on Windows, where editing support is thinner. If an editor won’t cooperate, convert the HEIC to PNG (lossless) or JPG first, then edit the copy.

How to open a HEIC file

Where you can open a HEIC file depends on your device.

On iPhone, iPad, and Mac

Nothing to do — HEIC opens natively in Photos, Preview, and Quick Look.

On Windows

Install the free HEIF Image Extensions from the Microsoft Store to view HEIC in the Photos app. For the full walkthrough, see our guide on how to open HEIC files on Windows.

On Android

Android has supported HEIC since Android 10 (2019) on capable hardware. Older phones may need a converter first.

In a browser

Only Safari renders HEIC natively. The easiest cross-browser option is to convert the file — our HEIC to JPG converter does it instantly in your browser, with nothing uploaded.

How to convert HEIC to JPG (or PNG)

Converting is usually the fastest way to make a HEIC file work anywhere.

On iPhone

Share or email the photo and iOS often converts it to JPG automatically. You can also set transfers to convert (see below).

On Mac

Open the file in Preview, then choose File › Export and pick JPEG.

On any device, free

Use HEICHub’s browser-based tools. Convert HEIC to JPG for sharing, HEIC to PNG when you need lossless quality or transparency, or HEIC to PDF to combine photos into one document. Everything runs on your device — your files are never uploaded.

How to turn off HEIC on your iPhone

If you’d rather your iPhone just save JPGs from now on, change one setting.

Go to Settings › Camera › Formats and choose Most Compatible. New photos will be captured as JPG.

Note: this only affects photos you take afterward. Photos already saved as HEIC stay as HEIC until you convert them.

You can also make transfers convert automatically: go to Settings › Photos, scroll to Transfer to Mac or PC, and choose Automatic.

Is HEIC the future?

HEIC is modern, but it isn’t the last word. A newer format, AVIF, offers similar efficiency with a royalty-free license and is gaining browser support fast.

For now, HEIC remains the format your iPhone uses, so knowing how to open and convert it is the practical skill. Whether AVIF eventually replaces it, the workflow stays the same: keep HEIC to store, convert when you share.

The bottom line

A HEIC file is Apple’s clever, space-saving photo format — smaller and more capable than JPEG, but not as widely supported. Keep your photos as HEIC on Apple devices, and convert them to JPG, PNG, or PDF whenever you need them to open somewhere else.

Frequently asked questions

What does HEIC stand for?+

HEIC stands for High Efficiency Image Container. It is a single image (or the primary image) stored inside the HEIF container format, compressed with HEVC (H.265).

Why are my photos saved as HEIC instead of JPG?+

Since iOS 11 (2017), Apple sets HEIC as the default camera format on iPhones and iPads because it stores photos at about half the size of JPEG at the same quality. You can switch back to JPG in Settings › Camera › Formats.

Is HEIC better than JPG?+

For storage and quality, yes — HEIC is roughly 50% smaller than JPEG at the same quality and supports more (16-bit color, transparency, depth). For compatibility, JPG wins because it opens everywhere. Use HEIC to store photos, JPG to share them.

How do I open a HEIC file on Windows?+

Install the free HEIF Image Extensions from the Microsoft Store to view HEIC in the Photos app, or convert the file to JPG. Our free HEIC to JPG and HEIC to PNG tools do this in your browser without uploading anything.

How do I convert HEIC to JPG?+

On iPhone you can email or share the photo to auto-convert it. On any device, use a free converter like HEICHub's HEIC to JPG tool, which runs entirely in your browser.

How do I turn off HEIC on my iPhone?+

Go to Settings › Camera › Formats and choose 'Most Compatible'. Your iPhone will then capture new photos as JPG. This only affects photos taken afterward.

Can Photoshop open HEIC files?+

Yes, recent versions of Photoshop can open 8-bit HEIC files. Support for 10-bit or 12-bit HEIC is limited, so you may need to convert those first.

Does HEIC lose quality when converted to JPG?+

Converting to JPG re-compresses the image, so there is a small quality loss, but at high quality settings it is virtually invisible. Converting to PNG is lossless if you need to preserve every pixel.

What is the difference between HEIC and HEIF?+

HEIF is the container format (the ISO standard). HEIC is a HEIF file whose image is encoded with HEVC. In short: every HEIC is a HEIF, but not every HEIF is a HEIC.

Can Android open HEIC files?+

Android has supported HEIC since Android 10 (2019) on devices with the right hardware. On older phones you may need to convert the file to JPG first.