Convert HEIC to AVIF Online
Turn HEIC files into AVIF directly in your browser using ConverterUp. There is no upload, no waiting in a queue, and no account required — your files stay on your device while WebAssembly does the work locally. Adjust quality and dimensions where supported, then download the result. The output keeps the visual fidelity you'd expect from a desktop app while running entirely in the browser tab.
Convert HEIC to AVIF nowHow to convert HEIC to AVIF
Open the converter
Click the button to open the HEIC to AVIF tool. It loads instantly — no install, no signup.
Drop your HEIC file
Drag your HEIC file into the upload area or click to browse. The file stays in your browser memory only.
Download AVIF
The conversion runs locally and finishes in seconds. Click download to save the AVIF file to your device.
Frequently asked questions
Is the HEIC to AVIF conversion really free?
Yes. ConverterUp is fully free, with no signup, no watermarks, and no daily quota for the HEIC to AVIF converter. We support the project through unobtrusive ads.
Are my HEIC files uploaded to a server?
No. Conversion runs in your browser using WebAssembly. The HEIC bytes never leave your device, and we have no upload endpoint at all.
What is the maximum file size?
For HEIC input, the soft cap is 50 MB for images and 500 MB for video. Practical performance depends on your device's RAM.
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Ready to convert HEIC to AVIF?
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