HEIC vs JPG: which should you use?

Both are lossy image formats. The difference is age: JPG was designed in 1992, HEIC in 2015. Newer does not automatically mean better for your use case.

The short answer

Use HEIC when the photo stays inside the Apple ecosystem: it stores more detail, supports 10-bit colour and takes roughly half the space of a comparable JPG. Use JPG when the image has to leave the phone - email, a website, a printer, a government portal. In practice, that second case is most of the time, which is why the format causes so much friction.

If you need both - small files and universal compatibility - WebP is usually the better destination than JPG: it keeps transparency and is typically 25-35% smaller.

How the two formats actually differ

Both discard information your eye is unlikely to notice, but they do it with different tools. HEIC uses the HEVC codec, the same family used for video, and can store 10-bit colour and HDR information. JPG is limited to 8-bit colour and cannot store transparency at all. That is why a HEIC photo of a sunset often shows smoother gradients than the same shot saved as JPG.

The catch is support. JPG is readable by essentially every device, program and service made in the last thirty years. HEIC is readable by Apple devices, and by browsers only when the operating system provides the codec - which Windows and most open-source software do not. A converter that decodes HEIC locally, without uploading the file, is the practical bridge between the two.

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What you lose when you convert

Converting HEIC to JPG always means going from 10-bit to 8-bit colour and dropping any extra metadata the JPG cannot hold. Visually, most photographs survive this well; smooth skies, dark shadows and wide gradients are where banding first appears. Converting to PNG avoids any further loss but produces a much larger file, because PNG is lossless.

A Live Photo is a special case: it is a still image plus a short video. Converting the still is straightforward, but the motion part is not carried across by any image converter - it simply ceases to exist outside Apple's ecosystem.

A practical workflow

Keep the original HEIC as your archive - it is the highest-quality copy you have. Convert a copy for whatever needs to receive it, and choose the target based on the recipient rather than on the format's technical merits.

DestinationBest formatWhy
Website or appWebPSmallest file with transparency and universal browser support
Email or messagingJPGOpened by every client, small enough for attachment limits
PrintingJPG at high qualityLossless would be ideal, but HEIC is rarely accepted
Further editingPNGNo generation loss across repeated saves
ArchiveOriginal HEICThe most detail you will ever have

Tools used in this guide

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PicConv. "HEIC vs JPG: which should you use?". https://picconv.com/guides/heic-vs-jpg/ (accessed 2026-11-01).

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Frequently asked questions

Is HEIC better quality than JPG?

At the same file size, yes: HEIC stores more detail and supports 10-bit colour, so gradients and shadows hold up better. At the same visual quality it is also smaller. The trade-off is compatibility, not quality.

Why does my iPhone use HEIC instead of JPG?

Apple made it the default in iOS 11 because it roughly halves the storage cost of a photo. You can change the camera setting to "Most Compatible", which makes the phone save JPG instead - at the cost of larger files.

Can I convert HEIC to JPG without uploading my photos?

Yes. A browser-based converter decodes the file on your own device and never sends it anywhere, which matters for photos of documents, ID cards or anything private. This site works that way for every tool.

Does converting HEIC to JPG lose quality?

A little, because JPG is 8-bit and lossy. In practice the difference is invisible for most photographs and only shows in smooth gradients. Convert from the original each time rather than from a previously converted copy.

What about HEIC files that will not open at all?

Some HEIC files use variants - HDR gain maps, depth maps, multi-image containers - that a simple decoder ignores. The primary image still converts; the extra layers are dropped rather than corrupted.

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