AVI to MP4
Convert legacy AVI videos to modern MP4
How It Works
Select Your File
Upload, drag & drop, or paste directly from clipboard.
Configure Options
Set quality level and output format.
Download Result
Processed entirely in your browser. Download instantly.
About AVI to MP4
Convert AVI video files to modern MP4 format entirely in your browser. AVI (Audio Video Interleave) is a legacy video format from Microsoft that produces large files and has limited codec support on modern devices. Converting to MP4 with H.264 encoding dramatically reduces file size while improving compatibility with all modern devices, browsers, and platforms. This tool handles all AVI codec variants including DivX and Xvid. Uses FFmpeg for local processing –your files stay on your device.
Frequently Asked Questions
Why convert AVI to MP4?
AVI is a legacy format that produces unnecessarily large files. MP4 offers better compression, wider compatibility, and support for modern features.
Will all AVI codecs work?
The tool handles most common AVI codecs including DivX, Xvid, and MJPEG. Rare or proprietary codecs may not be supported.
How much smaller will the MP4 be?
Typically 50-80% smaller, depending on the original AVI codec.