Can I change a .heic file to .heif by renaming it?

No. Renaming the extension does not change the codec inside the file. The file will still contain HEVC compressed data. The extension is just a label; the actual image data determines compatibility.

Does every HEIF file use HEVC?

No. HEIF is a container that can hold images compressed with various codecs. HEIC specifically refers to HEIF files that use HEVC. Other HEIF files may use AV1 (AVIF) or other codecs.

Why do iPhones use .heic instead of .heif?

Apple adopted the .heic extension to indicate that the file contains HEVC compressed images. This helps apps and operating systems know which codec to use for decoding. The underlying container is still HEIF.

Is AVIF better than HEIC?

Both use the same HEIF container, so they share the same structural features. AVIF uses the AV1 codec, which is royalty free, while HEIC uses HEVC, which requires licensing. Image quality and file size depend on the specific codec implementation, not the container.

HEIC vs HEIF: What Is the Difference?

Search for heic vs heif and you will find the two terms used almost interchangeably. Here is the distinction: HEIF (High Efficiency Image File Format) is the base specification, and HEIC is one type of HEIF file, the kind that uses HEVC (H.265) compression for its images. Apple adopted HEIF/HEIC for iPhone photos starting with iOS 11 in 2017, which is why most people first hit these formats on an iPhone.

What is HEIF? the Base Specification

HEIF stands for High Efficiency Image File Format. It is a specification developed by MPEG and published as ISO/IEC 23008-12. Think of it as a box that can hold different kinds of data. HEIF can store multiple images, depth maps, alpha channels, and image sequences, all in one file. JPEG cannot do any of that. It holds a single still image and nothing else.

The HEIF specification does not dictate which compression method (codec) is used for the actual image data. That decision is left to the creator of the file. Because of this, you will see HEIF files that use different codecs, such as HEVC or AV1.

What is HEIC? HEIF with HEVC

HEIC is the name Apple uses for HEIF files whose images are compressed with HEVC (H.265). HEVC is a video compression codec that is also very efficient for still images. Take a photo on an iPhone running iOS 11 or later. The phone saves it as a .heic file. The file itself is still a HEIF box, but the image inside is encoded with HEVC.

HEVC compresses image data more efficiently than older codecs. An HEIC file is about half the size of a comparable JPEG while keeping the same visual quality. That is why Apple chose it: storage space shrinks, image detail stays.

File Extensions .heic vs .heif

You will encounter files with either the .heic or .heif extension. The difference is simple:

.heic is used for HEIF files that contain HEVC-encoded images. This is what iPhones produce.
.heif is used for HEIF files that may use other codecs (for example, AV1) or for HEIF files that do not specify the codec in the extension.

Both extensions refer to the same base format. The image data inside might be compressed with different codecs, but the structure is identical. Converting HEIC to JPG works the same way whether the extension is .heic or .heif.

How Does AVIF Fit In?

AVIF is also built on the HEIF specification. The difference: AVIF uses the AV1 codec instead of HEVC. AV1 is a newer, royalty-free video codec developed by the Alliance for Open Media. Like HEIC, AVIF files are HEIF boxes holding AV1-compressed images.

HEIC is widespread on Apple devices. AVIF is gaining ground on other platforms and browsers because it does not require HEVC licensing. Both formats share the same underlying structure, which means they can hold multiple images, depth maps, and other data in the same way.

Why the Confusion?

The confusion between HEIC and HEIF comes from a single source: most people only ever see HEIC files from iPhones and assume HEIC is the format name. It is not. HEIF is the base specification. HEIC is one specific implementation of it.

Quick Comparison

HEIF = the base structure (a box that can hold different types of data).
HEIC = a HEIF file that uses HEVC for image compression.
AVIF = a HEIF file that uses AV1 for image compression.

Think of a shipping container. HEIF is the container. HEIC and AVIF are the labels that tell you what is inside. Same container, different cargo.

How to Convert HEIC to JPG

Share iPhone photos with someone who cannot open HEIC files? Convert them to JPG. The process is the same whether your files use the .heic or .heif extension.

Go to a free online converter, such as heictojpgconverter.co.
Upload your HEIC or HEIF file. You can upload multiple files at once.
Select JPG as the output format.
Start the conversion. The service decodes the HEVC image inside the HEIF structure and saves it as a JPEG.
Download the converted JPG files.

The conversion changes only the compression and the wrapper. Image quality stays the same as the original. No watermark is added.

Key Takeaways

The Core Distinction

HEIF is the base specification (ISO/IEC 23008-12).
HEIC is a HEIF file that uses HEVC compression for images.
iPhones save photos as .heic files.
Files may use .heic or .heif extensions depending on the codec used.
AVIF is also a HEIF file, but with AV1 compression instead of HEVC.
Converting HEIC to JPG works the same way for both extensions.