PNG files — especially photos or detailed graphics saved as PNG — can be very large because PNG is lossless. AVIF keeps the things you care about, including transparency, while shrinking the file dramatically. It’s a great way to make heavy PNGs web-friendly.
Conversion happens in your browser, so your PNGs are never uploaded and the process starts immediately.
How to convert PNG to AVIF
- Drop your .png files into the box above.
- Set the quality level.
- Download your AVIFs (or a ZIP of all of them).
When PNG to AVIF helps most
PNG is ideal for lossless graphics, but it’s inefficient for photographic content. AVIF shines exactly there.
Photos or screenshots accidentally saved as huge PNGs.
Web images where load speed matters.
Transparent graphics you still want to keep small.
Transparency and quality
AVIF supports an alpha channel, so transparent areas in your PNG are preserved. Use the quality slider to balance size against detail — for flat graphics and logos you can often go quite low and still look perfect.
For simple flat-color logos with few colors, PNG can occasionally be competitive on size; for anything photographic or gradient-heavy, AVIF wins by a wide margin.
Frequently asked questions
Is AVIF smaller than PNG?
Usually yes — AVIF often produces much smaller files, especially for photos and detailed images.
Does AVIF keep PNG transparency?
Yes, AVIF supports an alpha channel, so transparency is preserved.
Are my files uploaded?
No — it all runs in your browser.
Will I lose quality?
AVIF is lossy by default, but at sensible quality levels the difference is invisible while files get far smaller. Raise the slider for near-lossless results.
Can I convert several at once?
Yes, batch convert and download a ZIP.
Related: JPG to AVIF · AVIF to PNG · PNG to WebP