AVI to MP4 Converter
Convert AVI files to MP4 in your browser. Choose your file, adjust available settings, then download the converted file.
Maximum 100 MB per file, up to 5 files at a time.
300+ formats supported
Convert between 300+ file formats in your browser.
Fast and easy
Just drop your files on the page, choose an output format and click "Convert".
How to convert AVI to MP4
- Click the “Choose Files” button to select your files.
- Click on the “Convert” button to start the conversion
- When the status change to “Done” click the “Download” button
Good to know
AVI files usually come from older cameras, DVD rips and Windows software. MP4 with H.264 is far better supported and usually smaller at the same visual quality, which makes it easier to store and share.
About AVI
Audio Video Interleave · Video container
A legacy Microsoft video container often used by older cameras and software.
Opens with: Older Windows software and many media players.
Strengths: Useful for compatibility with older workflows.
Limitations: Less suitable for modern web and mobile playback.
About MP4
MPEG-4 Part 14 · Video container
A common video container that usually holds H.264 or H.265 video and AAC audio.
Opens with: Phones, browsers, TVs, editors and social platforms.
Strengths: Very broad compatibility.
Limitations: Features depend on the audio and video codecs inside.
Why convert AVI to MP4?
A legacy Microsoft video container often used by older cameras and software. A common video container that usually holds H.264 or H.265 video and AAC audio.
Make video broadly playable. Keep the original file until you have checked the result.
Frequently asked questions
Many phones, TVs, browsers and social apps don’t play AVI. MP4 plays almost everywhere.
Usually yes, because MP4 uses more efficient compression than most AVI files.
Keep the original resolution and a high quality setting for a result that looks the same.