Updated July 20, 2026
It's a familiar situation: you transfer photos from your iPhone to a PC or upload them to cloud storage, and instead of the expected .jpg files you find .heic files that Windows can't open and listing sites won't accept. No panic needed — here's a clear breakdown of what HEIC is, when it's perfectly fine to leave photos in that format, and how to convert them to JPEG when you actually need to.
What HEIC Is and Why Apple Uses It
HEIC is the container format for HEIF (High Efficiency Image Format), which iPhone has used by default since 2017. The reason is simple — efficiency: the same photo in HEIC weighs roughly half as much as its JPEG equivalent at the same quality. For storing a photo archive, that's a real advantage: less space consumed. The one downside is compatibility — older versions of Windows, many websites, government portals, and older TVs don't support the format.
When You Don't Need to Convert
If your photos simply live in cloud storage and you browse them from your phone, there's nothing to do: Yandex Disk and Mail.ru Cloud display HEIC without any issues, and the files take up less space. Conversion is only necessary when a file needs to go somewhere that doesn't accept HEIC — a print shop, a classifieds site, official documents, or a colleague's old computer.
Method 1. Open HEIC on Windows for Free
Windows 10 and 11 can open HEIC files after you install the free "HEIF Image Extensions" add-on from the Microsoft Store. Once installed, HEIC photos open in the built-in Photos viewer, and "Save as" in any image editor lets you export them as JPEG. The limitation: you can only convert files one at a time.
Method 2. Configure Your iPhone So the Problem Doesn't Recur
Two useful toggles. First: Settings → Camera → Formats → "Most Compatible" — the camera will shoot in JPEG from that point on (your archive will be roughly twice as large). Second, a smarter option: Settings → Photos → "Transfer to Mac or PC" → "Automatic" — the phone stores HEIC internally, but automatically sends a compatible JPEG when you transfer files over a cable.
Method 3. Bulk Conversion: Online Tools and Desktop Apps
For a batch of 10–20 files, online converters like heictojpg work fine — but keep in mind you're uploading personal photos to a third-party server. For large folders on your computer, free apps like XnConvert or IrfanView can batch-convert thousands of files while preserving image quality and capture dates.
What About Cloud Storage Space
There's an important catch with bulk conversion: turning an archive from HEIC to JPEG roughly doubles its size — and your cloud storage fills up faster. If your goal is to save space, the logic runs the other way: leave photos in the cloud as-is and compress the heavy JPEG files instead — we cover exactly how this works in our guide to photo compression. And if years of duplicates have been piling up in your archive, tackle those first: guide to finding and removing duplicates.
Frequently Asked Questions
Does quality suffer when converting HEIC to JPEG?
At quality 90 or higher, the difference is invisible. But every subsequent re-conversion adds artifacts — keep the original and convert a copy.
Why are some iPhone photos JPG and others HEIC?
JPEG files come from certain shooting modes, images saved from messaging apps, and screenshots from older iOS versions — so a mixed archive is completely normal.
What about Android?
Modern Android phones also support HEIF (Samsung offers a "High efficiency pictures" toggle), and all the advice above applies equally.
Photo archive growing out of control and storage running low? Connect Yandex Disk or Mail.ru Cloud and compress your photos without downloading — free, with a backup of every file.
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