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HEIC to AVIF converter

Convert HEIC to AVIF in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want AVIF
70%
Icon sizes
How to make the SVG

Tracing suits logos, icons and flat artwork and scales cleanly. Photos are better kept as pixels inside the SVG.

16
50%
Dither Scatters black dots to suggest gray, instead of a hard cut-off.
Advanced 5
Keep the animation For animated GIF, WebP and APNG sources. Turn off to save just the first frame.
Rotate
Mirror horizontally
Mirror vertically

For an exact width and height, use the Resize Image tool instead.

Bytes of your files sent anywhere: 0 B

Related conversions

Other ways to convert HEIC

Convert other formats to AVIF

Read more about the HEIC format and the AVIF format, or see every image tool and all image conversions.

Should you convert HEIC to AVIF?

You want iPhone photos in the most efficient web format for a modern website.

A safe conversion when AVIF is what you need: both HEIC and AVIF keep every pixel, so the picture itself doesn’t change.

AVIF is also the more widely supported of the two: it opens in current browsers and apps, while HEIC is mainly an Apple format.

HEIC is the iPhone’s photo format, built on the HEVC video codec; AVIF is a modern image format that squeezes photos smaller than WebP. Use AVIF for photos on a website when you want the smallest files and can serve a fallback to older browsers.

HEIC and AVIF compared
Property HEIC AVIF
Compression Lossy Lossy or lossless
Transparency No Yes
Animation No Yes
Support Mainly an Apple format Opens in current browsers and apps
Best for Storing photos on Apple devices without using much space The smallest possible photos on a modern website
Introduced 2017 2019

How to convert HEIC to AVIF

  1. 01

    Add your HEIC

    Drop your HEIC image onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to AVIF. Change the quality if you want to; the defaults suit most files.

  3. 03

    Save the AVIF

    Press convert and save the AVIF. Several files come back together as a ZIP.

What changes when HEIC becomes AVIF

iPhone photos convert with their orientation

Portrait photos stay upright, and Live Photos become a still AVIF. Location and camera details aren’t copied into the new file.

The size stays about the same

HEIC and AVIF are close in size for the same content, so do this for compatibility rather than to save space. HEIC: An iPhone photo is usually 1–3 MB. AVIF: Often around half the size of the equivalent JPG.

This page is put together from our notes on each format, choosing only what is true of HEIC and AVIF, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Changing a picture’s format is work your browser already knows how to do. Sending your photos to a server first only adds waiting and risk, so nothing is sent.

How to check for yourself

Worth knowing

  • About the HEIC. AirDrop and iCloud often convert photos to JPG for you, but cables, email and “Files” copies keep HEIC, so the same photo works on one computer and not another.
  • About the AVIF. AVIF’s savings are real, but encoding is slow, so a batch that takes seconds as JPG can take minutes as AVIF.
  • DDS, PSD, EXR, XWD and JPEG 2000 are read by the FFmpeg engine, a one-time 31 MB download.

Questions

Will converting HEIC to AVIF lose quality?

AVIF is lossy, so some detail is discarded. The quality slider decides how much; the default of 90 is chosen so the difference is invisible in almost every photo.

Will the AVIF be smaller than the HEIC?

The size stays about the same. HEIC and AVIF are close in size for the same content, so do this for compatibility rather than to save space. HEIC: An iPhone photo is usually 1–3 MB. AVIF: Often around half the size of the equivalent JPG.

Read more about this

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