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MP4 to AVI Converter

Convert MP4 video to AVI locally in your browser with quality, resolution and frame-rate controls.

Drop MP4 videos hereUp to 10 files · 500 MB each · processed locally
No upload

AVAILABLE CONVERTERS

About MP4 and AVI

Learn about the source and output formats used in this MP4 to AVI conversion.

SOURCE FORMAT

MP4

MP4 is the most broadly supported modern video container for browsers, phones and social platforms.

Open MP4 Converter
OUTPUT FORMAT

AVI

AVI is a long-established video container commonly found in older Windows and camera workflows.

Open AVI Converter
InputMP4
OutputAVI
Best forvideo editing and publishing

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About this tool

About MP4 to AVI

Use MP4 to AVI to change a MP4 video into AVI without installing desktop software. Add the source video above, adjust the available quality, resolution and frame-rate controls, then download the converted file.

Online mp4 to avi conversion

The converter decodes the source and creates a new AVI file for compatible browsers and applications. Output size and processing time depend on duration, resolution, source codec and quality settings.

Local browser processing

Supported conversion runs on your device through the browser-based media engine. Keep the original video and check picture, sound and duration in the downloaded result before replacing an important source file.

Three simple steps

How it works

  1. 1
    Choose

    Add a supported file or paste your content.

  2. 2
    Process

    The tool works locally in your browser when supported.

  3. 3
    Download

    Save the result directly to your device.

Frequently asked questions

MP4 to AVI FAQ

How do I convert MP4 to AVI?

Choose a supported MP4 video, review the quality, resolution and frame-rate settings, start conversion and download the AVI result.

Are my files uploaded?

No. Supported video conversion runs locally in your browser, so the source file is not uploaded to zer.ai.

Will conversion change video quality?

Transcoding creates a new encoded file. Choose high quality when visual fidelity matters, or a smaller setting when output size is more important.