toolready. AVIF to PNG Converter

AVIF to PNG Converter

Decode AVIF into lossless, editable PNG.

    What this does

    Decodes AVIF images with your browser's built-in decoder and writes them out as PNG — lossless, 8-bit, with transparency preserved. Everything happens on your device; no file is uploaded. Batches of up to 20 files, 50 MB each, and the output is named after the input (photo.avif becomes photo.png). There is no quality slider on this page because PNG does not have one.

    What is AVIF and why do I have one?

    AVIF is a still-image container for the AV1 video codec, published by the Alliance for Open Media in 2019 and pushed hard by Netflix, which needed smaller artwork thumbnails. It compresses better than both JPG and WebP, so image CDNs and frameworks now serve it to any browser that advertises support. If you saved a picture from a modern website and got a .avif, that is why. Browsers cope; a lot of desktop software does not — older Photoshop and GIMP releases, Microsoft Office, most upload forms, and Windows without the AV1 extension all balk at it. PNG is the format to convert to when you intend to edit the image, because it will not lose anything further and it opens everywhere.

    Why does the file say "Could not decode image"?

    This tool has no AVIF decoder of its own; it relies on the one inside your browser. Chrome has had one since version 85 (2020) and Firefox since 93 (2021). Safari added it with macOS Ventura and iOS 16 in 2022, and Edge only in early 2024. On anything older, the row shows Could not decode image and that file is skipped. Updating the browser, or opening the page in Chrome or Firefox, fixes it. The same message appears for a file that is not actually AVIF despite its extension.

    How do I convert AVIF to PNG?

    1. Drop .avif files on the box above or click to choose them. Once each one decodes, its row shows the pixel size and file size.
    2. Press Convert to PNG.
    3. Click Download on each row. Files over 20 MB show a "may be slow" note; over 50 MB they are refused.

    Is the PNG exactly what was in the AVIF?

    Pixel for pixel, at 8 bits per channel, yes. The caveats are where AVIF goes beyond what a canvas can hold: 10- and 12-bit files and HDR content are reduced to standard 8-bit sRGB, so extremely bright or saturated regions may look tamer; wide-gamut colour is mapped into sRGB; and an animated AVIF sequence contributes only its first frame. Dimensions above 8192 pixels on a side are capped. No EXIF or other metadata is copied across, since the PNG is encoded fresh from pixels. For ordinary web images none of this is visible; for photography masters, keep the AVIF too.

    How big will the PNG be?

    Much bigger — often ten to twenty times. AVIF is one of the densest image formats in use, and PNG is fully lossless, so a 400 KB AVIF photograph can land at 5 MB or more. That is normal and not a sign of a problem. If you only need a shareable copy rather than an editable one, AVIF to JPG gives a file a fraction of the size, and the parent image converter lets you choose between all three outputs per batch.