PNG to AVIF Converter
Turn heavy PNGs into tiny AVIF files with transparency intact. Free and private.
Why convert PNG to AVIF?
AVIF is a modern image format based on the AV1 video codec. It routinely produces files far smaller than PNG, and usually smaller than WebP too, while supporting transparency and high dynamic range. That makes it a strong choice for hero images, product shots and illustrations where every kilobyte counts.
AVIF is supported by current versions of Chrome, Edge, Firefox and Safari. If you need to support older browsers, serve AVIF with a WebP or PNG fallback using the HTML picture element.
How to convert PNG to AVIF
Drop your PNG files above with AVIF selected, then click Convert All. AVIF uses a different quality scale from JPG and WebP, so the default of 50 already looks good for most images. AVIF encoding is more demanding than other formats, so large images can take a few seconds each.
Frequently asked questions
Does AVIF support transparency?
Yes. AVIF has a full alpha channel, so transparent PNG backgrounds are preserved.
Why is AVIF slower to convert than WebP?
AVIF's encoder searches harder for ways to save space, which takes more processing. Since the conversion runs on your own device, speed depends on your computer or phone.
Are my files uploaded anywhere?
No. Smushify converts everything inside your browser using WebAssembly. Your files are never sent to a server, so it is safe for private photos, client work and unreleased videos.
Can I convert many files at once?
Yes. Drop in as many files as you like, use "Format for all" and "Quality for all" to set every file in one go, then click Convert All and Download All.
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