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Convert BMP to AVIF

Counter BMP → AVIF
Drop your files here or paste with Ctrl+V · .bmp .dib

    BMP is uncompressed, so it wastes space and is impractical on the web. AVIF makes the smallest files at the same quality, the most efficient image format for websites.

    • Free
    • No sign-up
    • Batch conversion

    Why convert BMP to AVIF?

    To convert BMP 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 BMP to AVIF

    1. Add your BMP files

      Drag your BMP 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.

    BMP vs AVIF

    PropertyBMPAVIF
    Full nameWindows BitmapAV1 Image File Format
    TypeImageImage
    CompressionLosslessLossy or lossless
    TransparencyNoYes
    AnimationNoYes
    VectorNoNo
    Created byMicrosoftAlliance for Open Media
    Year—2019
    Extensions.bmp .dib.avif
    MIMEimage/bmpimage/avif

    About the formats

    BMP

    Windows Bitmap

    BMP is the native bitmap format of Windows. It usually stores pixels with no compression at all, so it is lossless but files are very large.

    All BMP 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 BMP 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.

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