Why won't my Mac open HEIC files?

macOS has opened HEIC natively since High Sierra (2017). If a HEIC won't open, it usually comes from a non-Apple device, is incomplete or corrupted (interrupted download), or the third-party app you used doesn't support the format. Preview and Photos will open it.

How do I convert HEIC to JPG for free on Mac?

Open the HEIC in Preview, then File > Export, and choose the JPEG format. It's free and built into macOS, with no extra software.

What's the difference between HEIC and HEIF?

HEIF is the container format (High Efficiency Image Format) and HEIC is Apple's implementation using HEVC compression. In practice they're handled the same way on a Mac.

macOS Guide

How to Open HEIC Files on Mac (Free)

A .heic file that won't open, or that you need to convert to JPG? Here are the 4 free ways to open and convert HEIC images on macOS — from the built-in tool to a dedicated viewer.

What is a HEIC file?

HEIC (High Efficiency Image Container) is Apple's photo format since iOS 11. It stores images at roughly JPEG quality using about half the space. The downside: it's less universal, and some apps or platforms don't read it directly.

The good news: macOS opens HEIC natively since High Sierra (2017). If a HEIC won't open on your Mac, it's usually because it came from a non-Apple device, it's incomplete (interrupted download), or the third-party app you used doesn't support the format.

Method 1 — Preview (built-in, fastest)

Double-click the file: Preview opens it directly. If it opens with something else, right-click › Open With › Preview. Nothing to install.

Limitation: Preview stays basic for browsing an entire folder of photos or navigating quickly.

Method 2 — Convert HEIC to JPG (free, built-in)

Open the HEIC with Preview.
Menu File › Export…
Choose the JPEG format, set the quality, then Save.

To convert several files at once: select them, open them all in Preview, then File › Export Selected Images.

Method 3 — The Photos app

If your HEIC files are imported into Photos, they display normally. To get one out as a JPG, drag it from Photos to the Desktop — macOS converts it automatically.

Method 4 — A dedicated, lightweight viewer

FreeOpen source~21 MB

Pitop Viewer

If you handle a lot of photos, a dedicated viewer is more comfortable than Preview. Pitop Viewer opens HEIC and RAW natively, also plays videos, and offers a thumbnail mosaic, slideshow and light editing (rotate, crop, filters, EXIF) — all in an app of about 21 MB (Tauri/Rust, not Electron). Free and open source.

Discover Pitop Viewer →

Other free viewers exist (Xee, qView, ImageGlass…); the key is choosing one that opens HEIC and RAW natively if you have many.

Frequently asked questions

Why won't my Mac open a HEIC?

Most often: a file from a non-Apple device, an incomplete/corrupted file, or a third-party app that doesn't support the format. Test with Preview or Photos: if they open it, the file is fine.

How do I convert HEIC to JPG for free?

Preview › File › Export › JPEG format. Free and no extra software (see Method 2).

HEIC vs HEIF — what's the difference?

HEIF is the container, HEIC is Apple's implementation with HEVC compression. In practice, they're handled the same on a Mac.

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