PNG to AVIF

Replace heavy PNGs on your website with tiny AVIF files, with transparency intact.

Drop your PNG images here Release to add

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Max 250 MB each · up to 20 files

PNG to AVIF for the lightest possible images

PNG files are often the single biggest drag on a page, particularly large banners and product cut-outs with transparent backgrounds. Until recently, JPG couldn't help because it has no transparency. This PNG to AVIF converter gives you a modern option: small files with the alpha channel intact.

A 3 MB transparent product shot can become a few hundred kilobytes, with no difference most visitors would notice. That's a real gain for page speed, especially on mobile.

How to convert PNG to AVIF

The encoder loads in your browser the first time it's needed.

  1. 1

    Add PNG images

    Bring in logos, cut-outs, illustrations or photos saved as PNG. Batches of up to 20 are supported.

  2. 2

    Set a quality level

    For sharp logos and text try 75 to 85. Photos usually look fine from about 60 upward.

  3. 3

    Encode to AVIF

    Press Convert to AVIF, and give it a little time. AVIF encoding is slower than other formats, but transparent areas are preserved.

  4. 4

    Check the savings

    See the new sizes on the result cards, compare the look, and download your AVIF files.

What suits AVIF, and what doesn't

ImageAVIF result
Product cut-out or photo with transparencyHuge savings; an ideal use
Illustration with soft gradientsExcellent, and no banding at decent quality
Screenshot containing small textGood at high quality; check the text closely
Tiny icon with flat colorsLittle or no saving; keep the PNG or use SVG
Pixel artNot suitable; lossy encoding blurs hard pixels

Rolling it out on a website

  • Size images before encoding. Resize Image brings them to their display size, so you aren't storing pixels that never appear.
  • Offer a fallback if your audience needs one. The picture element lets a browser choose AVIF or fall back to WEBP or PNG. PNG to WEBP makes the fallback.
  • Test on a real device. Open the page on a phone, especially if images have very fine edges.
  • Keep the PNG master. Future edits should always start from the lossless copy.

Free, private and local

Nothing is uploaded, so unreleased designs stay on your device. There's no account or watermark. If you ever need a PNG back from an AVIF, AVIF to PNG has you covered, though details lost at low quality won't return.

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Frequently asked questions

Yes. AVIF has a full alpha channel, so a logo or cut-out keeps its transparent background and soft edges.
For photos saved as PNG, savings of 80 to 95% are common. For flat graphics the gap is smaller, and a simple logo may not shrink much at all, since PNG already handles those well.
No. This encoder is lossy, and it's controlled by the quality slider. Fine details can soften at low settings, so keep your PNG as the master copy.
All current major browsers do, including Safari 16 and later. For older browsers, you can use the picture element with a PNG or WEBP fallback.
AVIF generally makes smaller files, while WEBP encodes faster and works in more software. If you're not sure, test both on a few of your images and compare.
AVIF's compression does a lot of analysis, and it's all happening on your device. Large images take longer, especially on phones.
No. The encoder runs locally in your browser.

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