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    Convertly Converter

    Compress a AVI video

    Compress AVI files, a legacy Windows video container.

    Accepted source formats

    AVI

    How it works

    1

    Drop your AVI.

    2

    Choose: stay in compressed AVI or convert to MP4 (recommended, universally played).

    3

    Download the result.

    Common mistakes

    • Using a source file of poor quality.
    • Publishing without checking the final result.
    • Confusing file size, dimensions and quality.
    • Overwriting the original file without keeping a copy.

    Pro tips

    • Always keep an original version.
    • Test several settings before downloading.
    • Use WebP for the web when possible.
    • Choose descriptive file names for SEO.

    Privacy and file handling

    File handling depends on the selected tool and format. For sensitive files, review the tool information before starting the operation.

    How to convert a AVI file to Compress a AVI video?

    Drag and drop or select your AVI file from your device. Click "Convert" and wait a few seconds. Get your converted Compress a AVI video file instantly. Convert AVI files to Compress a AVI video online. If a file fails, try a smaller version or split it when the tool supports that workflow.

    Supported formats

    Source format: AVI. Target format: Compress a AVI video. The final format should match how you plan to use it. Always check the output file before sharing it. Convert AVI files to Compress a AVI video online. The result depends on what the AVI and Compress a AVI video formats can preserve.

    What is the maximum AVI file size?

    The practical file-size limit depends on the format, browser and memory available on your device. If a file fails, try a smaller version or split it when the tool supports that workflow. Keep the original until you have approved the result. Convert AVI files to Compress a AVI video online.

    Which browsers are compatible?

    Use a recent, up-to-date browser. Behaviour can vary with the file format, available memory and the features supported by your device. Always check the output file before sharing it. The final format should match how you plan to use it. Keep the original until you have approved the result.

    Can I use the tool on mobile?

    You can try the tool on a phone or tablet with a recent browser. Large files may require more memory or be easier to process on a desktop computer. Choose a file, run the conversion, then check the result before downloading it. Current quotas and higher plans are shown on the Pricing page.

    Discover all our tools

    Convert, compress, merge and edit your files in a few clicks.

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    Complementary tools

    PDF → PNGJPG → PDFMP4 → PDFMP3 → WAV

    Guides and tutorials

    Learn how to use our tools with our detailed guides.

    Blog — Convert Video

    Frequently asked questions

    Many AVIs use old codecs (DivX, Xvid, MJPEG) or uncompressed (RAW), inefficient vs modern H.264/H.265. Re-encoding to H.264 typically divides weight by 3-5.

    Almost always yes: MP4 is universally played (iPhone, Android, iOS, all browsers, Windows, Mac, Linux) whereas AVI is poorly supported on mobile and web.

    Moving from an old codec to H.264 at equivalent bitrate, perceived quality stays identical or even improves thanks to the better efficiency of the modern codec.

    External subtitles stay separate alongside the file; our tool can optionally embed them in the final MP4 (softsub) or burn them into the image (hardsub).

    Yes, our audio extraction tool separates the audio track of an AVI into MP3/AAC/WAV — handy for recovering the soundtrack of an old family video.
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