Convert AVI to MP4 Online Free

Modernize your AVI videos with MP4 format for universal compatibility

Fast, secure, and completely free AVI to MP4 conversion in your browser

Conversion Settings

Loading: Initializing video converter...

How to Convert AVI to MP4

1

Upload Your AVI File

Drag and drop your AVI video file or click to browse. Files up to 1GB supported.

2

Choose Quality Settings

Select H.264 encoding quality and compression settings for optimal MP4 output.

3

Download Your MP4

Click convert and download your MP4 file instantly. Processing happens in your browser.

Why Convert AVI to MP4?

Superior Compression

MP4 offers much better compression than AVI, resulting in smaller file sizes without quality loss.

Modern Compatibility

MP4 is supported by all modern devices, browsers, and streaming platforms.

Streaming Ready

MP4 is optimized for online streaming and progressive download.

Mobile Friendly

Perfect playback on smartphones and tablets with efficient battery usage.

Editing Support

Better support in modern video editing software and applications.

Storage Efficiency

Save significant storage space while maintaining video quality.

Frequently Asked Questions

Why is AVI file size so large?

AVI is an older format that often uses less efficient compression methods, resulting in larger file sizes compared to modern formats like MP4.

Will converting AVI to MP4 reduce quality?

When properly configured, MP4 conversion can maintain the same visual quality while significantly reducing file size through better compression.

Can I play MP4 on older devices?

MP4 has excellent backward compatibility and is supported by most devices from the past 15+ years.

How much smaller will my file be?

Typically, MP4 files are 50-80% smaller than equivalent AVI files while maintaining similar quality.

Is this converter free to use?

Yes, our AVI to MP4 converter is completely free with no registration required.

Are my files uploaded to your servers?

No, all conversion happens in your browser. Your files never leave your device, ensuring complete privacy.