AVIF Converter
Create modern, lightweight AVIF images in your browser.
Local-first AVIF conversion
Convert images to AVIF.
Upload JPG, PNG, WebP, or AVIF images and export AVIF files for modern websites. Your files stay on your device when your browser supports local conversion.
Images are converted in your browser. Files are not uploaded.
AVIF encoding support varies by browser. The tool will show a message if local AVIF export is unavailable.
When should you use AVIF?
AVIF is a modern image format built for efficient web delivery. It can produce small files while preserving detail, especially for photos and rich graphics.
Use AVIF for websites, landing pages, product images, and performance-sensitive pages where modern browser support is acceptable. Keep JPG, PNG, or WebP fallbacks for older browsers or workflows that do not support AVIF yet.
Frequently Asked Questions
What is AVIF?
AVIF is a modern image format based on AV1 compression. It is designed to deliver high-quality images with smaller file sizes for the web.
Is AVIF smaller than WebP?
Often, yes, but not always. Results depend on the image and quality setting, so compare the output before replacing production assets.
Are my images uploaded?
No. This tool uses your browser to decode and encode images locally when AVIF encoding is supported.
Why does AVIF conversion not work in some browsers?
Some browsers can display AVIF but cannot export AVIF through Canvas yet. In that case the page shows a friendly unsupported-browser message.
Can I convert multiple images at once?
Yes. Add multiple files, convert them together, then download each AVIF file or a ZIP archive.
Privacy Policy
We do not collect, store, or transmit images you process. Conversion runs locally in your browser when supported.
Terms of Use
ConvertUnlimited is provided as is. You are responsible for the files you process and for checking browser compatibility before publishing AVIF images.