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
- Open /tools/png-to-avif.
- Choose a .png file within the shared limits.
- Adjust AVIF quality if needed (default 90%).
- 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
- PNG to AVIF Without UploadingLearn how Looty Tools converts PNG to AVIF privately in your browser, verifies the output MIME type, and avoids conversion uploads.
- PNG vs AVIFCompare PNG and AVIF for transparency, lossy quality, editing workflows, and when converting PNG to AVIF is the better delivery choice.
- Convert PNG to WebPConvert a PNG image to WebP locally with adjustable quality. Transparency is kept when the browser encoder supports alpha.