UtilSlateSearch toolsCtrl K

PNG to AVIF Converter

Turn PNG images into smaller AVIF files, see-through kept.

Output

PNG (JPG, WebP, GIF and BMP work too), up to 20 files, 50 MB each

Drop more files anywhere on this page, or

    Runs on your device. No upload wait.

    What you get in the AVIF

    • Full resolution
    • Transparency
    • Quality 70 by default
    • Standard sRGB colors
    • No location or camera data

    Questions

    Should I use lossless?

    For photos saved as PNG, no: normal AVIF is many times smaller and looks the same. For screenshots, icons and flat graphics, lossless keeps edges perfectly crisp; compare the sizes, since a well-compressed PNG can be smaller than lossless AVIF for simple graphics.

    Will the AVIF work on my website?

    Yes: Chrome, Edge, Firefox and Safari all show AVIF. For very old browsers you can keep the PNG as a fallback in a <picture> element.

    Why does converting take a few seconds?

    AVIF encoding does a lot of work to find the smallest file. It runs on your device, one image at a time; large images use a faster setting.

    Is the encoder downloaded?

    Yes, once: browsers can read AVIF but can’t write it, so the page loads an AVIF encoder (libavif with the AOM AV1 encoder, about 1.1 MB compressed) when you start. It then works offline too.

    How many images can I do at once?

    Up to 20 files per batch, up to 50 MB each and 200 MB in total. Files are processed one after another; download each one as soon as it is ready, or all of them as a ZIP.

    Very large images are refused to keep your browser from running out of memory: above 100 megapixels on computers and 50 megapixels on phones and tablets. On iPhone and iPad, formats other than HEIC are limited to about 16 megapixels by Safari.

    Is it free? Do I need an account?

    It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.

    Missing something, or not working as it should? Tell us