TL;DR: HEIC stores a photo in roughly half the file size of JPG at the same quality, and it holds richer data — 16-bit colour, Live Photos, depth maps. The catch is compatibility. Only Apple devices and Safari open HEIC cleanly. Chrome, Firefox, Edge, and most websites do not. So keep HEIC for storing photos on your iPhone and Mac, and convert to JPG the moment you need to share, upload, edit on Windows, or put an image on a website.
You took a photo on your iPhone, tried to send it to someone on Windows, and they could not open it. The file ended in .heic and nothing on their machine knew what to do with it.
That is the whole HEIC vs JPG problem in one sentence. One format is smaller and smarter. The other one just works everywhere.
This guide explains the real difference, when each format makes sense, and the fastest way to convert when you need to.
What is a HEIC file?
HEIC stands for High Efficiency Image Container. Your iPhone has saved photos in this format by default since iOS 11 in 2017.
It is built on HEVC, the same compression used for H.265 video. That is what makes it so efficient — it packs the same image quality into far less space than JPG.
HEIC also carries things JPG cannot. It can hold a Live Photo, a depth map for Portrait mode, 16-bit colour, and even more than one image inside a single file.
The honest catch: outside the Apple world, support is thin. That single advantage on storage becomes a headache the moment the photo leaves your device.
What is a JPG (JPEG) file?
JPG, also written JPEG, has been around since 1992. It is the most universal image format on the planet.
Every browser, every operating system, every photo app, every printer, and every upload form understands it. You will never hand someone a JPG and hear “I can’t open this.”
The trade-off is that JPG is older and simpler. It uses 8-bit colour, has no transparency, stores only one image per file, and produces larger files than HEIC for the same quality.
None of that has stopped it. Universality is the whole point of JPG, and that is exactly why it refuses to die.
HEIC vs JPG: the key differences
Here is the side-by-side. Most of the decision comes down to two rows — file size and compatibility.
| Feature | HEIC | JPG / JPEG |
|---|---|---|
| File size | About half of JPG at the same quality | Larger |
| Quality at same size | Higher | Lower |
| Colour depth | 16-bit (over a billion colours) | 8-bit (16.7 million colours) |
| Transparency | Yes | No |
| Live Photos / depth data | Yes | No |
| Browser support | Safari only | Every browser |
| Works on Windows / Android | Needs extra software or conversion | Out of the box |
| Best use | Storage on Apple devices | Sharing, uploading, web, printing |
Is HEIC better than JPG?
On paper, yes. In practice, it depends on where the photo is going.
HEIC wins on the technical side. Smaller files, better quality per byte, richer colour, and extras like depth and Live Photos. If your photos are sitting in your iPhone or Mac library, HEIC is the smarter choice and saves you real storage.
JPG wins the moment the photo has to travel. A Windows colleague, an old photo editor, a job application form, a website — all of these expect JPG.
So the honest answer is this: a smaller, sharper file that the other person cannot open is not actually better. Pick the format by destination, not by spec sheet.
HEIC vs HEIF: what is the difference?
Short answer: HEIF is the format, HEIC is Apple’s version of it.
HEIF (High Efficiency Image File Format) is the broader container standard. HEIC is a HEIF file compressed specifically with HEVC, and it uses the .heic extension that Apple chose.
For everyday use, treat them as the same thing. If your iPhone made it, it is almost certainly HEIC, and the same conversion steps apply to both.
Why does my iPhone save photos as HEIC?
Apple switched the default to HEIC to save storage. The same photo takes roughly 50% less space, so your phone fills up slower and your iCloud backups stay smaller.
If the compatibility trouble outweighs the storage saving for you, you can switch your iPhone back to JPG. Go to Settings → Camera → Formats and choose Most Compatible.
The trade-off is bigger files. If you shoot a lot and you live across Apple and non-Apple devices, leaving HEIC on and converting only when needed is usually the better balance.
When should you convert HEIC to JPG?
Convert to JPG whenever the photo is leaving the Apple ecosystem. The common cases:
- Sharing with someone on Windows or Android
- Uploading to a site or form that rejects
.heic - Editing in older or non-Apple software
- Sending to a printer or photo lab
- Putting an image on a website (browsers cannot display HEIC)
If the photo is only going to stay on your iPhone or Mac, leave it as HEIC. There is no reason to convert and bloat your storage for nothing.
How to convert HEIC to JPG
The fastest way is a browser converter. Nothing to install, no account, and your photos never leave your device.
I use convertheictojpg.net for this. It runs entirely in the browser, converts in batches, and gives you a quality slider so you can balance size against sharpness. Since nothing is uploaded, it also works for private photos you would not want sitting on a stranger’s server.
If you want a second option in the same vein, the HEIC to JPG tool on TheImageCDN does the same job locally in the browser.
You can also convert without any tool. On a Mac, open the photo in Preview and use File → Export with the format set to JPEG. On an iPhone, the simplest trick is to copy the photo into the Files app, which saves a JPG copy. On Windows, opening the HEIC in Paint and using Save As → JPEG works once you have Apple’s HEIF extension installed.
HEIC and websites: do not upload it directly
This one trips up a lot of site owners. If you upload a HEIC file to your website, most visitors will see a broken image, because Chrome, Firefox, and Edge cannot render it.
Always convert HEIC to a web format first — JPG for safety, or WebP and AVIF for smaller, modern delivery. Better still, let an image CDN handle the format automatically based on each visitor’s browser. The best image CDN providers do this conversion and compression for you at the edge.
If you are backing up a phone full of HEIC photos, it is also worth reading our guide to the best photo backup solutions — most of them store HEIC at full resolution without forcing a conversion.
Is HEIC better than JPG?
Technically yes — HEIC stores the same quality in about half the file size and supports richer colour and depth data. But JPG is better when compatibility matters, because it opens on every device, browser, and app. Choose HEIC for Apple storage, JPG for sharing and the web.
Can I open a HEIC file on Windows?
Windows 10 and 11 can open HEIC after you install Apple’s free HEIF Image Extensions from the Microsoft Store. Without it, the file will not open. The simpler fix is to convert the HEIC to JPG first, which any Windows machine can read.
Does converting HEIC to JPG lose quality?
There is a small quality loss because both are lossy formats, but at high quality settings it is not visible to the eye. The JPG file will be larger than the HEIC. For everyday sharing and uploads, the difference does not matter.
Is HEIC the same as HEIF?
Almost. HEIF is the container standard, and HEIC is a HEIF file compressed with HEVC using the .heic extension that Apple uses. For practical purposes they are the same, and the same conversion steps work for both.
Should I turn off HEIC on my iPhone?
Only if you frequently share photos with Windows or Android users and the compatibility trouble annoys you. Switch it off under Settings, Camera, Formats, Most Compatible. The cost is larger files. Many people keep HEIC on and convert only the photos they need to send.
Why is my HEIC file not opening?
Your device or app does not support the HEVC compression HEIC uses. This is normal on Windows, Android, and in non-Safari browsers. Install Apple’s HEIF extension, or convert the file to JPG with a browser converter to open it anywhere.
Summing Up!
HEIC and JPG are not really competitors. They are two tools for two jobs.
Keep HEIC as your iPhone and Mac default. It saves storage, holds better quality, and carries the extra data Apple features rely on. Then convert to JPG the moment a photo has to leave that world — a share, an upload, a print, or a website.
The cleanest way to handle that last step is a browser converter like convertheictojpg.net, so your photos stay on your device and you only convert what you actually need to.
So which side are you on — do you keep your iPhone on HEIC to save space, or have you switched everything back to JPG for an easy life? Tell me in the comments.
