PNG to AVIF Converter

Convert PNG to AVIF Online

AVIF is the image format built on the AV1 codec, and it is the most space-efficient way to ship a PNG to the web — typically a fraction of the original size while keeping the alpha (transparency) channel intact. Use lossy AVIF when you want the smallest possible file for delivery (much smaller than PNG, though not pixel-identical), or lossless AVIF when you need to preserve every pixel exactly. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public.

How to Convert PNG to AVIF

1. Upload Your PNG File: Drag and drop your PNG onto the page or click "Add Files" to browse. You can queue several PNGs and convert them in one batch.
2. Choose Lossless or Quality Preset: Open Advanced Options. Set Lossless? to Yes to keep every pixel exactly (larger file), or leave it on No and pick a Quality Preset (Very High through Low) to trade a little fidelity for a much smaller file.
3. Optionally cap the file size: Use Specific file size to hit an exact target (for example 200 KB), or Target file size (%) to shrink relative to the source. Leave these alone to let the quality preset decide.
4. Convert and Download: Click "Convert" and download your AVIF. No sign-up, no watermark.

PNG vs AVIF at a Glance

Frequently Asked Questions

Will converting PNG to AVIF lose quality?

It depends on the mode. Lossless AVIF reproduces every pixel exactly, so there is no visible quality loss — it just compresses the data more efficiently than PNG's DEFLATE. Lossy AVIF (the default) discards some detail to reach a much smaller file; at the Very High preset the difference is usually invisible at normal viewing distance, but it is not bit-for-bit identical. Choose lossless when exactness matters and lossy when file size matters.

Does AVIF keep the transparency from my PNG?

Yes. AVIF stores a full alpha channel as a separate auxiliary image alongside the main picture, so transparent and semi-transparent areas in your PNG carry over. This makes AVIF a strong choice for logos, product shots on transparent backgrounds, and UI assets that PNG is usually used for.

How much smaller will my AVIF file be than the PNG?

There is no fixed ratio — it depends on the image and the quality you choose. Flat graphics and screenshots with few colors compress well as PNG already, so the AVIF saving is smaller. Photographs and detailed images, which PNG stores poorly, shrink the most. In our testing, a 2000x1500 photo exported from a 7 MB PNG dropped to roughly 180 KB as lossy AVIF at the Very High preset with no obvious quality loss; the same image stayed several megabytes as lossless AVIF.

Which browsers and apps can open AVIF files?

Chrome 85+, Firefox 93+, Opera 71+, Edge 121+, and Safari 16.4+ display AVIF natively, covering about 93% of users worldwide per caniuse. Coverage is strong on the web but not universal in desktop image editors yet, so for the open web the common pattern is to serve AVIF with a PNG or WebP fallback using the HTML <picture> element. If you need to open the file in older software, convert it back to PNG.

Should I use AVIF or WebP for my PNGs?

AVIF generally compresses better than WebP at the same visual quality, especially for photos and HDR content, and both keep transparency. WebP has slightly wider support in older software and encodes faster. If maximum compression is the goal and your audience is on current browsers, AVIF wins; if you want a safer fallback or broader editor support, convert to WebP instead.