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Convert ICO to AVIF

Counter ICO → AVIF
Drop your files here or paste with Ctrl+V · .ico

    ICO is an icon container; to edit or share the picture inside, it needs a common format. AVIF makes the smallest files at the same quality, the most efficient image format for websites.

    • Free
    • No sign-up
    • Batch conversion

    Why convert ICO to AVIF?

    To convert ICO files to AVIF, drop them on the counter above.

    Most files convert in seconds: no queue, no email address, and the AVIF result saves straight to your computer or phone.

    How to convert ICO to AVIF

    1. Add your ICO files

      Drag your ICO files onto the counter, pick them with Choose files or paste from the clipboard with Ctrl+V. You can add several at once.

    2. Check the settings

      The defaults suit most cases. Change quality, size or other options if you like; after a change, one click converts again.

    3. Conversion starts by itself

      Each file is converted to AVIF and its row is stamped CONVERTED.

    4. Download your AVIF file

      Get the file with Download. With several files you can download them all as one ZIP.

    ICO vs AVIF

    PropertyICOAVIF
    Full nameWindows IconAV1 Image File Format
    TypeImageImage
    CompressionLosslessLossy or lossless
    TransparencyYesYes
    AnimationNoYes
    VectorNoNo
    Multiple pagesYesNo
    Created byMicrosoftAlliance for Open Media
    Year19852019
    Extensions.ico.avif
    MIMEimage/x-iconimage/avif

    About the formats

    ICO

    Windows Icon

    ICO is the format for Windows icons and website favicons. One file can hold several sizes, from 16×16 up to 256×256.

    All ICO conversions

    AVIF

    AV1 Image File Format

    AVIF is a next-generation image format built on the AV1 video codec. It produces files smaller still than WebP at the same quality and supports transparency and HDR.

    All AVIF conversions

    Frequently asked questions

    Is converting ICO to AVIF free?

    Yes, completely free. No account, no daily limit, no watermark and no queue.

    Does it work on a phone?

    Yes. It works on iPhone, iPad and Android, with no app to install.

    Is there a file size limit?

    There is no size limit set by us. Files of hundreds of MB convert too; very large files take longer and are handled more comfortably on a computer than on a phone.

    Other conversions
    Family Give → Get What you gain
    AVIF ICO favicon and Windows icon · first frame
    ICO PNG lossless, crisp edges
    ICO JPG small photo that opens anywhere · transparency is filled
    ICO WEBP small file for the web
    ICO GIF plays in every chat
    ICO BMP for legacy Windows software · transparency is filled
    ICO TIFF print and archive quality
    ICO PDF gathered in one PDF
    JPG AVIF smallest image file · photo as it is
    PNG AVIF smallest image file · screenshots and logos
    WEBP AVIF smallest image file · images saved from the web
    GIF AVIF smallest image file · the GIF’s first frame
    BMP AVIF smallest image file · bulky bitmap shrinks
    TIFF AVIF smallest image file · scanned pages