What is HEIC? How to Open and Convert HEIC Files

What is a HEIC file?

HEIC (High Efficiency Image Container) is the default photo format used by iPhones running iOS 11 and later. When you take a photo on an iPhone, it is typically saved as a .heic file rather than the older .jpg format most people are familiar with.

Apple chose HEIC because it offers significantly better compression. A HEIC photo can be roughly half the file size of an equivalent JPG while maintaining similar visual quality. For users with thousands of photos on their phone, this saves substantial storage space.

However, HEIC's efficiency comes with a compatibility trade-off. Many devices, apps, and websites still expect JPG or PNG files. If you've ever tried to open an iPhone photo on a Windows PC or upload it to an older website, you may have encountered this problem firsthand.

Why does the iPhone use HEIC?

Apple switched to HEIC in 2017 with iOS 11 for several reasons:

• Storage savings — Smaller files mean more photos fit on your device and in iCloud.
• Better quality — HEIC supports 16-bit color depth compared to JPG's 8-bit, capturing more detail in highlights and shadows.
• Advanced features — HEIC can store multiple images in one file (Live Photos), transparency, and depth maps for portrait mode.

Despite these advantages, HEIC remains primarily an Apple ecosystem format. Android has added some HEIC support, but it is inconsistent. Windows requires a separate codec installation. Web browsers and email clients often cannot display HEIC files at all.

How to open HEIC files

On iPhone and Mac

HEIC files open natively on Apple devices. The Photos app on iPhone, iPad, and Mac handles HEIC without any additional software.

On Windows

Windows does not open HEIC files out of the box. You have two options:

1. Install the HEIF extension — Download "HEIF Image Extensions" from the Microsoft Store (free). This adds native HEIC support to Windows 10/11.
2. Convert to JPG — Use an online converter to transform HEIC files into universally compatible JPG format. This is the most reliable approach when sharing photos with others.

On Android

Some newer Android devices can open HEIC files, but support varies by manufacturer and Android version. Converting to JPG ensures compatibility across all Android phones.

How to convert HEIC to JPG

The fastest way to convert HEIC files is with a free online tool. No software installation is needed:

1. Open the HEIC to JPG converter
2. Upload your HEIC files (up to 30 at once)
3. Download the converted JPG files individually or as a ZIP

HEIC vs other formats

If you need your photos to work everywhere, JPG is the safest choice. For web publishing with smaller files, consider converting HEIC to WebP. For lossless quality, HEIC to PNG preserves more detail.

When should you convert HEIC?

Convert your HEIC files when you need to:

• Share photos with non-Apple users — Email, messaging, and social media work best with JPG.
• Upload to websites — Most CMS platforms, form uploads, and e-commerce sites expect JPG or PNG.
• Open on Windows — Without the HEIF codec installed, Windows cannot display HEIC files.
• Print photos — Many print services and photo labs require JPG format.
• Use in documents — Word, PowerPoint, and Google Docs handle JPG more reliably than HEIC.

Tips for managing iPhone photos

• Change iPhone camera format — Go to Settings → Camera → Formats → "Most Compatible" to shoot JPG instead of HEIC. This prevents compatibility issues at the source.
• Batch convert before sharing — If you regularly share iPhone photos with Windows users, convert a batch of HEIC files to JPG first.
• Keep originals — HEIC files contain more data than JPG. Convert copies for sharing, but keep HEIC originals on your iPhone for the best quality archive.

For a deeper comparison, read our guide on HEIC vs JPG or learn how to open HEIC on Windows.