Illustration of a PNG image card transforming into an AVIF download inside a browser

Image guides

How to Convert PNG to AVIF in Your Browser

PNG is ideal for editing and transparency. AVIF can shrink assets for modern delivery. This guide covers browser-local PNG to AVIF conversion with alpha kept when the encoder supports it.

Ready to try the tool this guide describes?

Steps

  1. Open /tools/png-to-avif.
  2. Choose a .png file within the shared limits.
  3. Adjust AVIF quality if needed (default 90%).
  4. Select Convert & download and save the .avif.

Encoding and MIME checks

The tool probes canvas AVIF encoding and verifies the blob is image/avif before download. Silent PNG fallback fails clearly.

Transparency policy

Transparent PNG pixels are not flattened onto an arbitrary background. Alpha is retained when the browser AVIF encoder supports it. Conversion with a quality slider is lossy.

Convert PNG to AVIF FAQ

Can every browser encode AVIF?
No. Support is Chromium-first.
Does AVIF keep PNG transparency?
When the encoder supports alpha, yes. This tool does not invent a background fill.
Are images uploaded?
No.
Is conversion lossless?
No. The quality slider is lossy.
What limits apply?
25 MB and 8,192 px per side; quality 50%–100%.

Related guides

Open the tool

Jump into PNG to AVIF when you are ready to process your files.

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