MP4 to AVI Converter

Convert MP4 to AVI online. MP4 and AVI are containers, while the video and audio codecs live inside them. Free batch processing with no signup or watermark.

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What changes when you convert MP4 to AVI?

MP4 and AVI are containers, while the video and audio codecs live inside them. Compatible streams may be copied; otherwise they are re-encoded for the selected AVI settings.

For the widest playback support, check that the selected video and audio codecs are accepted by the device or service that will receive the AVI file.

Add multiple videos and adjust the available video and audio codec settings before processing.

Open the finished AVI file and check fine details, layout and compatibility in the app where you plan to use it.

What is a MP4 file?

MP4 is a widely supported container for video and audio. Compatibility and file size depend on the codecs and settings used inside it, which is why MP4 with H.264 video and AAC audio is a common choice for sharing and uploading.

How to open a MP4 file

MP4 is widely supported by browsers, phones, smart TVs and desktop players. Playback still depends on the video and audio codecs stored inside the file.

What is a AVI file?

AVI is a classic Microsoft video format from the 1990s. It offers broad compatibility and good quality but large, inefficient files, so it is mostly replaced by MP4 today - though it is still common in older archives.

How to open a AVI file

AVI opens in Windows Media Player, VLC and most desktop players; for phones and browsers, converting to MP4 is the reliable choice.

Frequently asked questions

Is it free to convert MP4 to AVI?

Yes. There is no sign-up, subscription or watermark on the converted file.

What happens to quality when MP4 becomes AVI?

MP4 and AVI are containers, while the video and audio codecs live inside them. Compatible streams may be copied; otherwise they are re-encoded for the selected AVI settings.

Which conversion options are available on this page?