AVIF to PNG Converter

AVIF is one of the most efficient image formats around, but many editors, slide programs, print shops and older apps still cannot open it. PNG is understood everywhere and, like AVIF, can hold transparency, so logos and cut-out pictures keep their see-through background. This converter decodes each AVIF with your browser's own decoder and saves a lossless PNG. Files never leave your device.

How to use this tool

1. Drop one or more .avif files into the box.
2. Tick “Save every frame” if a file is an animated AVIF and you want each frame as its own PNG.
3. Optionally enter a max width to scale large images down.
4. Download each PNG, or all of them together as a ZIP.

Formula

AVIF (AV1 still image in a HEIF container) → decoded RGBA pixels → optional resize → PNG (lossless Deflate compression, 8 bits per channel).

The red, green, blue and alpha values the browser decodes are written to the PNG unchanged, so the PNG shows exactly what the AVIF shows. Frames of animated files are read with the WebCodecs ImageDecoder API in Chrome and Edge; other browsers save the first frame.

Example

A 1200 × 800 px AVIF logo with a transparent background becomes a 1200 × 800 px PNG with the same transparent areas. With a max width of 600, the scale is 600 ÷ 1200 = 0.5 and the PNG is 600 × 400 px. Expect the PNG to be several times larger than the AVIF: it stores every pixel losslessly.

HDR and 10-bit AVIF

Phones and some cameras save AVIF with 10 or 12 bits per channel, sometimes as HDR. PNG files made here are standard 8-bit sRGB, so the browser maps those colours into the normal range first, and the brightest HDR highlights look flatter than on an HDR screen. The table shows the bit depth of each file when the AVIF header records it.