PNG to AVIF Converter
Local-first PNG to AVIF conversion. Built for batches.
Drop files here
or click to browse · paste from clipboard
Accepts .PNG · Up to 1,000 files
How it works
Drop your files
Drag and drop, click to browse, or paste from clipboard. Up to 1,000 files at once.
Choose settings
Adjust quality, format, and other options to match your needs.
Click Convert
Everything runs in your browser via WebAssembly. PNG to AVIF Converter happens locally — no server involved.
Download
Download files individually or grab all at once as a ZIP.
Frequently asked questions
AVIF is dramatically smaller than PNG for photographic content — typically 70–85% smaller. For non-photographic content like logos, screenshots, and UI assets, the difference is less pronounced; lossless AVIF is usually 20–40% smaller than PNG. The exact savings depend on image complexity. ConvertYard shows you per-file byte savings so you can verify before using the converted files.
Use lossless mode for images that require pixel-perfect accuracy: logos, icons, screenshots, UI mockups, text-heavy images, and any image you'll edit again. Use lossy mode (the default) for photographs, illustrations with gradients, and images destined for display — the quality difference at 70 is invisible and file sizes are much smaller.
Yes. AVIF fully supports an alpha channel (transparency), just like PNG. Transparent regions in your PNG will be preserved in the output AVIF. Browser support for AVIF transparency is universal in all AVIF-supporting browsers.
Chrome (v85+), Firefox (v93+), Edge (v121+), and Safari (v16.4+). That covers over 93% of global web traffic. For maximum compatibility, use a <picture> element with AVIF as the preferred source and PNG as the fallback.
AVIF uses the AV1 codec under the hood, which prioritizes maximum compression over speed. Encoding a large PNG to AVIF at effort 4 takes 2–10x longer than WebP. Reduce the effort slider to 0–2 if speed matters. Decoding is fast — the slowness is encode-only and doesn't affect load times for your users.
Never. Conversion runs entirely in your browser using WebAssembly. Your files never leave your device. ConvertYard's servers only deliver the tool's code; they never see your images.