Convert VIFF to AVIF Online
Convert VIFF images to AVIF format free, fast, and privately in your browser.
Drag & drop files here, or browse
Up to 20 images at once
How to convert VIFF to AVIF
Upload your files
Drag & drop or browse up to 20 VIFF files at once.
Browser converts locally
Files convert to AVIF in your browser - nothing is uploaded anywhere.
Download results
Save files individually or download everything as a ZIP bundle.
Why use this converter
100% Private - Nothing Uploaded
Your VIFF files never leave your device. All conversion happens locally inside your browser using WebAssembly. Zero server contact.
Batch + ZIP Download
Convert up to 20 VIFF files to AVIF at once and download them all as a single ZIP archive in one click.
Lossless Output Quality
AVIF is a lossless format - every pixel from your VIFF file is preserved exactly with no compression artifacts.
Web Performance Ready
AVIF is designed for the modern web - smaller file sizes mean faster page loads and better Core Web Vitals scores.
Frequently asked questions
Upload your VIFF files by dragging them into the drop zone or clicking Browse. Select up to 20 files at once, then click Convert. Your files are processed locally in your browser and ready to download in seconds - no account or internet connection needed after the page loads.