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Convert PNG to AVIF Online

PNG is a common format worth converting when a tool like this doesn’t accept it directly. Converting to AVIF happens instantly, right in your browser. AVIF gives the smallest file sizes of any format here, but support in older browsers and some software is still limited.

100% Private — Processing happens locally inside your browser. No files are ever uploaded.

Why Convert PNG to AVIF

PNGs are common from screenshots, design exports, and downloaded graphics — great for editing, but often larger and less convenient than needed for a final upload. Converting to AVIF gets you the smallest possible file size, where the audience’s software supports it — done instantly, for free, without installing anything or creating an account.

PNG vs AVIF: Technical Specs

Quick verdict: Pick PNG for logos, screenshots, graphics needing transparency, AVIF for next-gen web images, smallest file sizes.

PNG
AVIF
Full name
Portable Network Graphics
AV1 Image File Format
Extension
.png
.avif
MIME type
image/png
image/avif
Compression
Lossless
Lossy or lossless
Transparency
Yes
Yes
Color depth
Up to 48-bit + alpha
Up to 12-bit + alpha
Typical use
Logos, screenshots, graphics needing transparency
Next-gen web images, smallest file sizes
Browser support
Universal
Modern Chrome, Firefox, Edge

How It Works & Privacy Guarantee

Converting your PNG file to AVIF happens in three steps, entirely on your device: your browser reads the PNG file into memory, decodes and re-encodes it as AVIF using built-in browser technology (Canvas and WebAssembly), and hands you the finished file as a direct download.

At no point does the file get sent to a server. There’s no upload step to intercept, no account that could be breached, and nothing stored after you close the tab — the conversion simply couldn’t leak your file even if something went wrong, because it never left your browser in the first place.

PNG to AVIF FAQ

What should I know about converting to AVIF?

AVIF gives the smallest file sizes of any format here, but support in older browsers and some software is still limited.

Will converting PNG to AVIF reduce quality?

We decode the original PNG data and re-encode it at high quality, so any difference is minimal to the eye for normal use.

How do I convert PNG to AVIF for free?

Drop your PNG file into the box above and press Convert — the AVIF download is ready in seconds, with no account, no watermark, and no limit on how many files you convert.

Can I convert multiple PNG files to AVIF at once?

Yes — drop in as many files as you need, convert them all in one go, and download everything together as a single ZIP instead of clicking download on each file individually.

More Ways to Convert PNG and AVIF