What Is the Difference Between HEIC and HEIF?

This article provides an overview of the HEIF and HEIC image formats, explaining their technical differences, benefits, and common compatibility challenges. You will learn why modern devices use these formats to save storage space without sacrificing image quality, and find a quick solution for converting these files into universally compatible formats.

Understanding HEIF and HEIC

When Apple introduced iOS 11, millions of smartphone users suddenly noticed their photos were saving with a .heic file extension instead of the traditional .jpg. This shift left many wondering what these new formats meant for their digital media.

To understand them, it helps to break down the acronyms. HEIF stands for High Efficiency Image File Format. It is the structural standard developed by the Moving Picture Experts Group (MPEG) to store images and image sequences. On the other hand, HEIC (High Efficiency Image Coding) is the specific file extension and container variant that Apple adopted to hold these HEIF images, encoded using the HEVC (H.265) video compression standard. In short, HEIF is the overarching format standard, while HEIC is the actual file format you see on your device.

Benefits of High Efficiency Formatting

The primary reason major tech companies transitioned to HEIF and HEIC is efficiency. Traditional JPEG compression algorithms are decades old and struggle to keep up with the data-heavy demands of modern high-resolution smartphone cameras.

HEIC files compress image data much more efficiently than JPEGs. This means an HEIC photo takes up roughly half the storage space of an equivalent JPEG file while maintaining—or even improving—visual quality. Beyond space savings, HEIC supports 16-bit color depth (compared to JPEG’s 8-bit depth), allowing for smoother gradients and better preservation of highlights and shadows. It also supports image transparency, embedded thumbnails, alpha channels, and can store multiple images in a single file, which is essential for live photos, bursts, and animations.

Overcoming Compatibility Issues

Despite the clear technical advantages, HEIC faces a significant hurdle: compatibility. While Apple ecosystems fully support the format, older operating systems, certain Windows applications, Android devices, and web platforms often fail to open or display HEIC files natively.

If you need to share your photos with non-Apple users or upload them to website portals that only accept JPEG, you will need to convert your files. You can use an online tool to convert HEIC to JPEG quickly, allowing you to process your images in bulk for free without installing any additional software on your computer. This ensures your high-quality photos remain accessible on any device or operating system.