Convert AVI to MP4
Free online AVI to MP4 converter. Fast, browser-based, no watermarks.
Convert the file format before the upload deadline or the next editing pass.
Select Video
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Processing
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Download
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Maximum file size: 50GB
Free convert video to MP4 online
A free video to MP4 converter changes MOV, AVI, WebM, MKV, and other video files into an MP4 that opens cleanly in editors, websites, phones, and social platforms. Use MP4 when an upload rejects your original file, an iPhone MOV will not open, or you need one format for editing and sharing.
How to use it
Upload your AVI file
Select an AVI video from your computer or external drive.
Automatic conversion
We convert your AVI to the modern, universally compatible MP4 format.
Download MP4
Your converted MP4 is ready to share or upload anywhere.
What you get
Legacy Format Support
Convert old AVI videos to modern MP4 format for better compatibility.
100% Free & No Watermarks
Convert unlimited videos for free. No registration required.
Browser-Based Processing
All conversion happens in your browser. Your videos stay private.
Smaller File Sizes
MP4 typically produces smaller files than AVI with similar quality.