Why your iPhone saves photos as HEIC
With iOS 11 in 2017, Apple switched the default camera format to HEIC — a still-image profile of the HEVC (H.265) video codec, wrapped in the HEIF container. The pitch was simple: the same photo at the same quality, in about half the storage. On a phone full of pictures, that adds up fast, and HEIC also carries things JPEG can't, like depth maps, Live Photo motion, wide colour and 10-bit tones.
The catch is licensing and reach. HEVC is patent-encumbered, so support never spread the way JPEG's did. Plenty of websites reject the upload, older editors don't recognise it, and until recently Windows needed a paid codec from the Microsoft Store before File Explorer would even show a thumbnail.
HEIC vs JPEG: what you actually gain and lose
Against JPEG, HEIC wins on efficiency and on what it can store — better compression, transparency, wider colour and brightness range. JPEG wins on the only thing that often matters in the moment: it opens absolutely everywhere, on hardware and software going back decades.
Converting HEIC to JPEG trades a little of that headroom for universal compatibility. For an ordinary photo you won't see the difference; on a very high-contrast shot a JPEG can look a touch flatter, because it can't hold the same range of tones.
Want JPEGs straight from the camera?
On an iPhone, open Settings → Camera → Formats and choose "Most Compatible" to shoot JPEG from now on. Leave it on "High Efficiency" to keep saving space, and convert to JPEG only when a particular site or app needs it.
Strengths
- About half the file size of JPEG at similar quality.
- Stores transparency, wide colour, HDR tones, depth maps and Live Photos.
- Saves significant space on a phone full of photos.
Limitations
- Patent-encumbered; poorly supported outside Apple devices.
- Many websites and older apps reject it.
- Needs converting to JPEG for reliable sharing and printing.
When to use HEIC
Keep HEIC to save space in your photo library; convert to JPEG whenever a photo has to leave the Apple ecosystem.
HEIC FAQ
- Why won't my HEIC photo upload?
- Many websites and forms only accept JPEG or PNG. Convert the HEIC to JPEG first and it will upload like any other photo — Morphr does this in your browser without uploading the file anywhere.
- Does converting HEIC to JPEG lose quality?
- There is a small, usually invisible loss because JPEG re-compresses the image and can't hold HEIC's wider tonal range. At full quality the result is hard to tell from the original.
- Is HEIC the same as HEIF?
- HEIF is the container; HEIC is specifically HEIF holding HEVC-encoded images — the variant Apple uses. In everyday use the .heic and .heif extensions refer to the same kind of file.