You AirDrop a photo from your iPhone to your work laptop, double-click it, and Windows shrugs. The thumbnail is a generic icon. Photos app says "This file format isn't supported." Or it offers to install something from the Microsoft Store, asks you to sign in, and then asks for $0.99. You just wanted to crop a screenshot.
This is the HEIC problem, and it has been quietly tripping up iPhone users for the better part of a decade. Here's what's actually going on, the four ways to fix it, and the one fix that takes about 30 seconds with no installs.
Convert HEIC to JPG nowWhat is HEIC, exactly?
HEIC stands for High Efficiency Image Container. It's Apple's name for HEIF — a modern image format that uses the same compression family (HEVC / H.265) that Apple TV and a lot of 4K video uses. The big selling point: an HEIC photo is roughly half the size of an equivalent JPG, with no visible loss in quality. On a 256GB iPhone full of vacation shots, that math adds up fast.
Apple switched the default camera format to HEIC starting with iOS 11 in 2017. Every iPhone shipped since the iPhone 7 takes HEIC by default unless you specifically dig into Settings → Camera → Formats and pick "Most Compatible."
So why won't Windows open it?
HEIC is patent-encumbered. The HEVC codec at its core is licensed through a patent pool, and the licensing terms are messy enough that Microsoft chose not to bake HEIC support directly into Windows. Instead, Microsoft made it available as two paid extensions in the Microsoft Store — one free (HEIF Image Extensions) and one $0.99 (HEVC Video Extensions, which is required to actually decode HEIC because HEIC piggybacks on the HEVC codec).
So on a fresh Windows 10 or Windows 11 install, double-clicking a HEIC file does nothing useful. Your options are:
- Pay 99 cents to Microsoft for an extension that should arguably have shipped for free.
- Install third-party viewer software (which often comes with adware or telemetry).
- Change your iPhone's camera setting so it never shoots HEIC again (and lose the storage savings).
- Convert the file to JPG once and forget about it.
Option 4 is what most people want. It keeps the iPhone shooting in efficient HEIC, but gives you universally-readable JPG files exactly when you need to share, upload, or edit them.
The 30-second fix
Open our HEIC to JPG converter, drag your .heic file onto the page, and download the JPG. That's it. No signup, no installer, no upload to a server. The decoding happens locally in your browser using the same WebAssembly HEIF decoders that Chrome and Safari ship with internally.
Why local-first matters here: HEIC photos often contain GPS coordinates, the model of your phone, and the exact second the shutter clicked. Uploading them to a "free" converter site means handing all of that metadata — plus the image itself — to a stranger's server. The local approach keeps it on your machine.
If you're converting more than one file at a time, you can drop them all in at once. Each file converts independently, so a batch of 30 photos finishes in roughly the time it takes to convert one large one.
What about Photos app or Mail?
A few side notes for the path you might have already tried:
Windows Photos app
Sometimes opens HEIC, sometimes doesn't, depending on whether the HEVC extension snuck onto your machine via a hardware bundle (some Dell and Lenovo OEM installs include it). If it does open, the experience is fine — but you can't share the .heic to a Slack thread or a web form without converting first anyway.
Mail clients on Windows will happily attach a .heic file and send it. The recipient on the other side gets the same problem you have. If you're emailing photos to anyone outside the Apple ecosystem, convert first.
Web upload forms
Most won't accept .heic at all. The dropdown filter is "JPG, PNG, GIF" — HEIC isn't on the list, so the file picker grays it out. Convert to JPG and the upload works.
If you'd rather change the iPhone setting instead
If you almost never need HEIC's space savings, you can flip the default. On your iPhone:
- Open Settings
- Tap Camera
- Tap Formats
- Pick Most Compatible
From that point on, new photos save as JPG. Existing HEIC photos in your library stay HEIC — you'll still want a converter for those.
What about PNG?
If you need a lossless export — for example, a screenshot or a UI mockup where artifact-free edges matter — convert to PNG instead. We have a dedicated HEIC to PNG converter that uses the same local-first approach.
For batch conversions where you're also merging into a single document (think: emailing six photos as one file), HEIC to PDF rolls them all into one PDF in a single drop.
The bigger picture
HEIC isn't going away. Apple is sticking with it, Samsung and Google are quietly testing HEIC variants on Android, and the next generation of formats (AVIF, JPEG XL) faces the same patent and OS-support gauntlet. Until Windows ships universal modern-image support out of the box, a fast local converter is the path of least resistance.
That's the whole story: the format is fine, Windows just doesn't decode it for free, and you don't actually need to pay anyone to fix it. Drop the file, get a JPG, move on with your day.
Open the HEIC to JPG converter