Convert HEIC to AVIF
Turn HEIC images into AVIF right in your browser. The newest format, usually the smallest files. Nothing is uploaded, and many images convert at once.
Why convert HEIC to AVIF?
- AVIF usually gives the smallest files of any format here, ideal for fast websites.
- AVIF keeps transparency and handles smooth gradients and photos well.
- iPhone photos are saved as HEIC, which many Windows apps, Android phones and websites cannot open.
Good to know
- HEIC is already compressed, so converting to AVIF compresses it a second time. Keep quality at Balanced or higher and check the result in the before/after viewer.
- AVIF takes longer to create than the other formats, especially for large photos.
- Photo orientation is respected and location (GPS) and camera data is not copied into the converted file.
Questions about HEIC to AVIF
Will converting HEIC to AVIF reduce quality?
A little, by design: AVIF is a lossy format, so it trades some detail for a smaller file. At the default Balanced setting the difference is rarely visible, and you can raise the quality or compare before and after in the viewer.
Can I make the AVIF files smaller or change their size?
Yes. Use the quality setting, or fit the images to a maximum width, or scale them by a percentage. The results update straight away.
Are my images uploaded to a server?
No. Everything happens inside your browser, on your own device. Your images are never sent anywhere, which also means it keeps working on a slow connection once the page has loaded.
Is it really free? Do I need an account?
Yes, it is free and there is no account, watermark or daily limit.
How many images can I convert at once?
Up to 200 at a time. Drop a whole folder, convert them together, and download everything as one ZIP file.