heic
High Efficiency Image Container
What iPhones shoot by default. Far smaller than JPEG, but still awkward outside the Apple ecosystem.
Convert HEIC to AVIF
Free, no account, no watermark. Converted on our servers, then deleted.
Drop an HEIC file here
As many as you like. We will show you what they convert to.
How to convert HEIC to AVIF
- 1
Choose your file
Drop an HEIC file onto the converter, or pick one from your device. You can add several at once.
- 2
Select AVIF
Pick AVIF as the output format. Open Settings if you want to control the quality, how long to spend, and whether to keep EXIF, and 3 more.
- 3
Download the result
Convert and download the finished file. No account, and nothing to install.
avif
AV1 Image File Format
The current efficiency leader, often half the size of JPEG at matching quality. Encoding is slow.
HEIC to AVIF, asked and answered
Does converting HEIC to AVIF lose quality?
It depends on the settings. AVIF has both a lossy and a lossless mode, and the quality control on this page decides which one you get.
Can I convert the AVIF back to HEIC?
Not here. We can read AVIF but no engine of ours writes HEIC, so this conversion only goes one way.
What can I change about the AVIF it produces?
You can set the quality, how long to spend, whether to keep EXIF, the width and height, whether to enlarge, and whether to keep every pixel. Anything left on Auto is decided by the encoder, which is usually the right answer unless you are targeting a specific size or device.
Where does the conversion happen?
On our server. The file is sent over HTTPS and converted in a sandbox with no network access of its own; your input and the result go together, removed at once if it fails and otherwise kept for a few minutes so you can download them, then deleted — whether or not you did. There are no accounts for anything to be kept against.
Is there a limit on file size?
Yes — there is a per-file cap and an hourly job limit, because this runs on one small server. The API page states the limits currently in force rather than a number baked into this page.