PNG to AVIF
converter.
Convert PNG to AVIF in your browser to shrink heavy PNGs for the web — nothing uploaded. Drop your PNGs and download far smaller AVIF files that keep transparency.
Why convert PNG to AVIF?
PNGs are lossless but often huge. AVIF can cut their size by 70–90% while keeping transparency, which makes it ideal for web graphics where PNG weight hurts page speed.
PNG vs AVIF
PNG is lossless and large; AVIF offers lossy and near-lossless modes with far better compression plus alpha support. onvert encodes AVIF locally via WebAssembly. Tip: for logos or line art, use a high quality setting to keep edges crisp.
FAQ
PNG to AVIF, answered.
- How much smaller will my PNG get?
- Often 70–90% smaller, depending on the image — photographic PNGs shrink the most.
- Is transparency kept?
- Yes, AVIF supports an alpha channel, so transparent PNGs stay transparent.
- Are my files uploaded to a server?
- No. Conversion runs entirely in your browser using WebAssembly. Your files never leave your device and we never see them.
- Is it free?
- Yes, converting on onvert is completely free, with no sign-up and no ads.
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