PNG to AVIF converter
Convert PNG images to AVIF right in your browser. Nothing is uploaded, so it’s fast and private.
Drop files inside the box. They stay on your device. How we know
Open in its own tabNothing is uploaded
Files are converted inside your browser tab.
Works offline
Once the page has loaded, turn off Wi-Fi and it still converts.
Free, up to 50 at once
No sign-up, no watermark, no waiting.
How to convert PNG to AVIF
- 1
Drop your PNG images into the box, or tap Choose files.
- 2
Check the settings if you like.
- 3
Download each AVIF file, or all of them as one ZIP.
About the formats
PNG is a lossless image format with transparency. It is ideal for screenshots, logos and graphics, but photos saved as PNG are much larger than JPG.
AVIF is a newer, highly compressed image format based on the AV1 video codec. Websites use it to load faster, but most desktop apps can’t open it yet.
Questions
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Updated October 17, 2026