Convert PNG to AVIF, the Next-Gen Image Format

Convert PNG to AVIF in your browser — a newer codec that's often 50%+ smaller than PNG at equal visual quality.

Universal File Converter: Private & Fast

Convert images, videos, audio, and documents directly in your browser. Your files never leave your device, ensuring 100% privacy and security.

Image Converter

Convert images between modern formats. Ideal for thumbnails, screenshots, and photos.

Drop your file here, or browse

Maximum file size: 50 MB

Supported: JPG, PNG, WebP, AVIF, HEIC, SVG, GIF, BMP, TIFF, ICO

Output format

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100% In-Browser Processing

Your files are processed strictly in local device memory. Nothing is uploaded — see how, and check for yourself.

How It Works

How to convert files with DuckConvert

Select Your File

Choose the file you want to convert from your device or drag and drop it into the converter.

Choose Output Format

Select your desired output format and any specific settings for your conversion.

Convert & Download

Click "Start Conversion" and wait for the local process to finish, then download your new file.

Don't take our word for it

This conversion runs entirely in your browser — nothing is uploaded. See exactly how, and check for yourself using your browser's DevTools Network tab.

How It Works

Conversion Mechanics

AVIF, built on the AV1 video codec, generally beats both PNG and WebP on compression efficiency while still supporting transparency, making it worth using on image-heavy sites chasing every byte of page weight. The trade-off is encode time: AVIF compression is more computationally intensive than PNG or WebP, so larger images take noticeably longer to convert, and a small slice of older browsers still lack support — keeping a WebP or PNG fallback for those visitors is a reasonable precaution.

Why It's Private

Runs Entirely In Your Browser: Files are decoded and re-encoded strictly in local memory.
No Network Requests: The converter makes no calls to any server — check your browser's DevTools Network tab to confirm.
Nothing to Sign Up For: No account, no upload, and no server-side storage of your files.
Runs On Your Hardware: Processing uses your own device's CPU via Web Workers, not a remote server.

Step-by-Step PNG to AVIF Local Guide

Select File

Drop your .png file into the box above.

Configure

Confirm AVIF is selected as the output format.

Convert

Click Convert — encoding runs locally and may take a few extra seconds versus PNG or WebP.

Save Result

Download the resulting .avif file.

Frequently Asked Questions on Secure PNG to AVIF Conversion

AVIF's compression algorithm is more computationally demanding, trading longer encode time for a smaller output file — a fair trade for images served to many visitors.

All current major browsers do. Some older versions and a handful of niche apps don't yet, so keep a fallback format if you need maximum compatibility.

Yes, AVIF supports an alpha channel, so transparent regions are preserved.