Convert AVI to MP4
Audio Video Interleave → MPEG-4 Video
Why Convert AVI to MP4?
MP4 is the universal video format, supported by all devices and platforms. AVI is an older format with larger file sizes and limited compatibility.
Best Online AVI to MP4 Converters
Free online converters work in your browser with no software installation required:
- CloudConvert - Fast and reliable converter
- FreeConvert - Fast and reliable converter
- Convertio - Fast and reliable converter
- Zamzar - Fast and reliable converter
Desktop Software for Avi files to mp4
Desktop applications offer more control, faster processing, and work offline:
| Software | Platform | Features | Price |
|---|---|---|---|
| HandBrake | All platforms | Best free video converter, excellent quality | Free |
| VLC Media Player | All platforms | Convert via Media > Convert/Save | Free |
| FFmpeg | All platforms | Powerful command-line tool for any format | Free |
| Adobe Premiere Pro | Windows/Mac | Professional video editing and export | Paid |
Conversion Tips
- Use H.264 codec for best compatibility
- MP4 files are typically 50-80% smaller than AVI
- Preserve original quality with CRF 18-23
- HandBrake provides the best free conversion
Step-by-Step Conversion Guide
- Choose your tool: Select an online converter for quick one-time conversions, or install desktop software for batch processing
- Upload your file: Click upload or drag your AVI file into the converter
- Adjust settings: Configure quality, resolution, or other options as needed
- Convert: Click the convert button and wait for processing to complete
- Download: Save your new MP4 file to your device