Private browser tool

Convert HEIC to AVIF

Re-encode an HEIC or HEIF photo as modern AVIF with control over quality, dimensions, and file size.

AVIF Choose a HEIC image or drag and drop it here

One HEIC image at a time

Output format: AVIF

AVIF quality 75%

Resize (optional)

WidthHeight

Lock aspect ratio Do not enlarge the image

Target maximum size (optional)

Quality is adjusted automatically when set. Output filename

The AVIF is newly encoded without the source metadata.

HEIC conversion guide

How to convert HEIC to AVIF

Choose an HEIC or HEIF photo, adjust AVIF settings, and download it when your browser supports AVIF encoding.

Select an image from your device or drag it into the upload area.

Choose quality, dimensions, and an optional maximum file size.

Review the preview and file size, then save the converted image.

This free online HEIC to AVIF converter includes the following controls and output tools:

Private browser conversion. The image is processed locally and is not uploaded.
Custom dimensions. Set an exact width and height, lock the aspect ratio, and prevent accidental enlargement.
Quality and file-size controls. Set AVIF quality or enter a maximum size in KB to find the highest quality that fits.
Before-and-after preview. Review the original and converted image, output dimensions, format, and file size.
File-size comparison. See the original and converted sizes and the percentage change.
Custom filename. Rename the converted file before downloading it.
Metadata-free export. The newly encoded AVIF does not copy source metadata.

AVIF is suitable for modern web delivery, while HEIC is more closely associated with Apple photo workflows.

Both formats are highly compressed. Re-encoding may add quality loss and will not always make the file smaller.

HEIC decoder code is downloaded and runs locally. A multi-image source uses the first image returned by the decoder.

AVIF encoding depends on browser support. Source metadata is not copied into the output.

Is this HEIC to AVIF converter free?

Yes. Convert one HEIC or HEIF image at a time.

Is my photo uploaded?

No. Decoding and encoding happen in your browser.

Why can AVIF export fail?

Some browsers do not provide an AVIF encoder.

Will AVIF be smaller?

Not necessarily because HEIC is already highly compressed.

Is HEIC metadata copied?

No. The AVIF is newly encoded without source metadata.

Use the full converter for HEIC, PNG, WebP, JPG, GIF, TIFF, BMP, AVIF, and more.