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PNG to AVIF Converter

Convert PNG graphics to AVIF — modern compression with transparency preserved

Drop PNG files here

or click to browse · batch and file limits adapt to your device memory

Frequently Asked Questions

How do I convert PNG to AVIF?

Three steps:

  1. Drop your PNG files onto the area above, or click to select
  2. Each file is decoded in your browser and re-encoded as AVIF at 92% quality
  3. Click Save next to each result to download
Does converting PNG to AVIF preserve transparency?

Yes. AVIF supports a full alpha channel, so transparent areas and rounded corners stay intact in the output — unlike JPG, which flattens transparency to a white background.

How much smaller will my files be?

PNG is lossless and bulky; AVIF typically compresses the same image 80-90% smaller with no visible difference. For logos and graphics with transparency, this is one of the highest-impact optimizations a website can make.

Why convert PNG to AVIF?

If you serve images on a website you control, AVIF is the smallest widely-supported format with transparency. Every major browser has supported it since 2023, so your PNG can stay as the lossless master copy.

Will I lose quality converting PNG to AVIF?

AVIF is a lossy format, so the output is re-encoded. At 92% quality the difference is invisible on photos and graphics, while the file shrinks dramatically. Keep your original PNG if you need a pixel-perfect lossless copy.

What's the difference between PNG and AVIF?

PNG is a lossless format from 1996 with large files. AVIF (2019) is based on the AV1 video codec and compresses photos and graphics far more efficiently while supporting transparency, HDR, and lossless mode. Learn more in our AVIF vs JPG comparison.

How many files can I convert at once?

Up to 10 PNG files in one batch. AVIF encoding is slower than JPG/WebP because of its complexity — large images can take up to a few minutes each.

Is this converter private?

Yes. All decoding and encoding happens locally in your browser using @jsquash/avif. Your images are never uploaded to a server.