HEIC to JPG: Why iPhone Photos Won't Open on Windows (And How to Fix It)

You took a photo on your iPhone. You AirDropped it to a Mac, no problem. You sent it to a friend on Windows, and they got back a file ending in .HEIC that their computer refuses to open. This isn't a bug — Apple defaulted iPhone photos to HEIC in iOS 11 (2017), and Windows still doesn't ship a free decoder for it. Here's why, and the five ways to convert HEIC to JPG.

Why iPhones use HEIC

HEIC is Apple's container for HEIF, an image format based on the same compression engine as HEVC (H.265) video. At equivalent quality, an HEIC file is roughly half the size of the equivalent JPEG. On a 256GB iPhone holding 30,000 photos, that's the difference between filling the phone in 18 months and filling it in three years. Apple chose compression. Windows is paying the support cost.

Why Windows won't open it

HEVC, the video codec HEIC piggybacks on, is patent-encumbered. To decode it legally, Windows would need to license the patents — which Microsoft does, but the cost is bundled into a separate HEVC Video Extension that costs about a dollar in the Microsoft Store. Without that extension, Windows Photos can't decode HEIC and Explorer shows a generic file icon.

Microsoft does ship a free HEIF Image Extension, but it depends on the paid HEVC extension to actually decode the pixels. The setup is convoluted enough that most users hit the wall on the first try and look for a converter.

Method 1 — Convert in the browser (recommended)

For a one-off conversion or a folder of vacation photos, the fastest route is a browser-based converter. Our HEIC to JPG converter decodes HEIC entirely in WebAssembly and never uploads your files. Drop the photos in, wait a few seconds per image, download the JPGs.

This is the right answer for vacation photos, screenshots from your iPhone, anything where you don't want to install software or upload to a server you don't trust.

Method 2 — Pay $1 for the Microsoft HEVC extension

If you receive HEIC photos regularly, the cleanest fix is to install both Microsoft extensions:

1. Open the Microsoft Store and search for "HEVC Video Extensions". The official one from Microsoft costs about $1.
2. Install the free "HEIF Image Extensions" companion.
3. Restart Windows Photos. HEIC files now open natively.

After this, double-clicking an .HEIC opens it in Photos and you can Save As JPG from the menu. The downside: you're tied to a paid Microsoft Store extension on every Windows machine you use.

Method 3 — Stop iPhone from shooting HEIC

If you control the source, you can sidestep the problem entirely:

• On iPhone: Settings → Camera → Formats → Most Compatible.
• This switches the camera to JPEG. Photos taken from this point onward open everywhere.

The trade-off is exactly what HEIC was designed to fix: a 4032×3024 photo grows from about 1.5 MB to 3 MB. If your phone storage is tight, leave HEIC on and convert when sharing.

Method 4 — Photos app on Mac

If you have a Mac in the chain, Apple's Photos app handles HEIC natively. Drag the photos out of Photos and the OS converts them to JPEG on export by default. This is a reasonable two-step pipeline for designers who work on Mac and ship to Windows clients.

Method 5 — Command-line for power users

On macOS or Linux, libheif ships a converter:

brew install libheif imagemagick
magick input.HEIC output.jpg

This is the right tool when you have hundreds or thousands of photos to process and want to script it. ImageMagick handles the metadata correctly so EXIF (date, location, camera settings) survives the conversion.

Picking the right method

• One-off, a few photos, no software install: browser converter.
• Receive HEIC every week: pay the $1 for Microsoft's extension.
• Sharing photos as-needed: change iPhone setting to "Most Compatible".
• Hundreds of photos to process: ImageMagick or a similar CLI on a desktop.

Watch out for: rotation

HEIC stores orientation as metadata, not by re-rotating the pixels. Some converters ignore the metadata and produce JPGs rotated 90° or upside-down. Test a single photo before bulk-converting a folder. The browser converter linked above respects the orientation tag automatically.

Watch out for: live photos

iPhone Live Photos are HEIC + a short MOV video bundled together. Most converters discard the video and only export the still frame. If you want the motion preserved, use Photos on Mac (which can export Live Photos as MP4 or animated GIF).

Bottom line

HEIC isn't going away — it's saving Apple users half their photo storage — but the Windows interop story is permanently rough. For most one-off conversions, a browser-based tool is the path of least friction. For recurring HEIC traffic, install Microsoft's extension and forget about it.