If you've ever emailed an iPhone photo to a Windows friend and heard 'the attachment won't open', you've met HEIC. It's the container Apple has used for every camera photo since iOS 11 (2017), and it's a genuinely great format — better color, better dynamic range, roughly half the file size of the equivalent JPG. The problem is that outside Apple's own ecosystem, hardly anything opens it.
Why iPhones save as HEIC
HEIC files use HEVC (the H.265 video codec) to compress still images. Modern iPhones have hardware silicon for HEVC, so encoding and decoding cost essentially no battery. The payoff is that a photo that would be 3–4 MB as JPG is 1.5–2 MB as HEIC, at higher perceived quality. Multiplied across a photo library of 30,000 shots, that's meaningful iCloud storage — the reason Apple defaulted to HEIC in the first place.
Why HEIC breaks so often outside Apple
HEVC is patent-encumbered. Google (Chrome, Android) and Microsoft (Windows) have historically been reluctant to license a decoder into every OS install, which is why HEIC support is inconsistent on those platforms. Windows 11 can install a paid HEIC extension; Android varies by manufacturer; Gmail's web preview shows a placeholder. The result is a stream of daily friction for iPhone owners sharing photos outward.
The two workflows
Workflow 1 — the permanent switch. Settings → Camera → Formats → Most Compatible. Every photo from that point on is saved as JPG, doubling the file size but eliminating the compatibility problem. This is the right choice for people who rarely edit photos in Apple's own apps and who regularly share with Windows and Android users.
Workflow 2 — convert on demand. Keep HEIC as the storage format (smaller, better quality on-device) and convert to JPG only the specific photos you're about to share. This is what the HEIC→JPG converter on this site is for: drop one or a hundred photos and get JPGs without an upload.
AirDrop is not a workaround
A common assumption: 'AirDrop from iPhone to Mac converts the file to JPG automatically.' It doesn't — you get the HEIC. Preview opens it, so it feels seamless, but if you forward that file to a PC user the problem re-appears. The fix is still to convert.
What about the EXIF data?
This tool strips EXIF (including GPS) by default when converting HEIC to JPG. That's a deliberate privacy choice — most people converting HEIC to JPG are about to email or upload the result, and stripping location data is the safer default. If you need metadata preserved, the EXIF Viewer tool will show you every field before you convert.
The one-line summary: keep HEIC for storage, convert to JPG for sharing. Everything else is a workaround for one of those two situations.
Frequently asked questions
How do I convert HEIC to JPG on iPhone without an app?
Open Files, long-press the HEIC, choose Quick Actions → Convert Image → JPEG. For batches, use a browser-based converter — it runs on your phone with no upload.
Does AirDrop automatically convert HEIC to JPG?
No. AirDrop transfers the HEIC file as-is. macOS Preview opens HEIC natively so it looks seamless, but forwarding the same file to a Windows user re-exposes the compatibility problem.
Will I lose quality converting HEIC to JPG?
A little — JPG is a lossier format at the same file size. In practice, at JPG quality 92 the difference is invisible at normal viewing sizes.
Shariq founded ImageConvertToJPG after a decade of shipping image pipelines for e-commerce and publishing platforms. Every tool on the site runs entirely in the browser — no uploads, no accounts, no tracking on tool pages.