Convert PNG to AVIF

PNG files are lossless and large. AVIF compresses them down to a fraction of the size — often 50-70% smaller — while keeping transparency intact. If the image is going on a website, this is one of the biggest performance wins available.

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Quality85%

Drag & drop your images here

or click to browse, or paste (Ctrl+V)

Supports HEIC, HEIF, WebP, PNG, JPG, AVIF, BMP

How to Convert PNG to AVIF

Drag and drop your PNG files into the box above, or click to browse.

Adjust quality — 80 gives a good balance between size and sharpness.

Download the AVIF files individually or as a ZIP.

Why PNG to AVIF is the biggest size win for web images

PNG stores every pixel losslessly, which is great for editing but expensive for delivery. A 2 MB PNG icon can become 200 KB in AVIF with no visible difference. For sites that serve lots of transparent assets — logos, UI elements, product shots on white backgrounds — converting PNG to AVIF can cut total page weight dramatically.

When AVIF is not the right target

AVIF is a delivery format, not a working format. If you plan to edit, annotate, or re-export the image, keep the PNG original and only convert to AVIF for the final published version. Also avoid AVIF when your CMS, email client, or design tool does not support it yet.

How to serve AVIF with a fallback

The standard approach is the HTML picture element: serve AVIF to browsers that support it, and fall back to WebP or PNG for the rest. This way you get the smallest possible file for most visitors without breaking anything for the minority on older browsers.

Known limitations

Before converting, note these constraints:

Output behavior follows format capabilities (for example transparency support and lossy/lossless rules).
Final file size depends on source image content and selected quality settings.
If compatibility is critical, choose broadly supported targets first (typically JPG).

Frequently Asked Questions

Does AVIF support transparency like PNG?

Yes. AVIF supports full alpha transparency. Transparent backgrounds, logos, and icons convert without losing their transparent regions.

How much smaller is AVIF compared to PNG?

It depends on the image, but photos typically shrink 50-70%. Graphics with flat colors and sharp edges see 30-50% reduction. The savings are significant either way.

Which browsers support AVIF?

Chrome, Firefox, and Safari (since version 16.4) all support AVIF. Global browser coverage is above 90% in 2026. For older browsers, serve a JPG or WebP fallback.

When should I keep PNG instead of converting to AVIF?

Keep PNG when you need to edit the image further (AVIF re-encoding adds loss), when the target app does not support AVIF, or when pixel-perfect accuracy matters more than file size.

Is AVIF better than WebP for transparent images?

AVIF compresses more aggressively than WebP at the same visual quality. If your platform supports AVIF, it is the better choice for transparent web images. WebP is the safer fallback when broader compatibility matters.

Why is the output file sometimes larger than the original?

The output file becomes larger for three clear reasons: (1) Converting from a lossy format (JPG, WebP) to a lossless format (PNG) preserves every pixel, so file size increases in exchange for zero quality loss. (2) AVIF uses the AV1 codec, which has encoding overhead for small or simple images. AVIF delivers its strongest compression gains on high-resolution photos, with 20–50% better compression than JPEG in benchmark comparisons. (3) If the source is already heavily compressed, re-encoding does not reduce size further. PicShift uses industry-leading WASM encoders (MozJPEG, OxiPNG, libwebp) to produce the smallest possible output at your chosen quality. In compress mode, PicShift automatically keeps the original file when compression increases size. Learn more: https://picshift.app/docs/size-increase-explainer