HubTools

PNG to AVIF Converter

Convert PNG to AVIF for dramatic file-size savings while preserving transparency.

Why convert PNG to AVIF?

AVIF can represent the same image as PNG at 70–90% smaller file size, with optional lossless mode if you need bit-perfect preservation. AVIF supports transparency and HDR, so it's a true superset of PNG for delivery purposes. The downside is encoding time and slightly less editor compatibility. For web delivery this is one of the highest-impact format swaps you can make. Everything is processed in your browser via WebAssembly.
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Unlimited files · runs entirely in your browser · nothing is uploaded

JPEG · PNG · WebP · GIF · AVIF · HEIC · JPEG XL

About PNG

PNG is lossless and ubiquitous but file-size-inefficient by modern standards.
  • PNG was designed in 1996; AVIF in 2019
  • AVIF lossless mode is typically 30–60% smaller than PNG
  • AVIF lossy mode is typically 70–90% smaller than PNG

Frequently asked questions

Should I use lossy or lossless AVIF?
Lossless AVIF preserves every pixel and is typically 30–60% smaller than PNG. Lossy AVIF is dramatically smaller (70–90% reduction) at quality settings indistinguishable from the source for most use cases.

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