Why are AVI files so large?

AVI is an older format with less efficient compression. Converting to MP4 typically reduces file size by 50-70% while maintaining quality.

Can I convert old AVI videos?

Yes! Our converter supports all AVI codecs including DivX, Xvid, and older formats. Convert your video archives to modern MP4.

📹AVI to MP4 Converter

Video Conversion

AVI to MP4 Converter - Convert AVI Videos Free

Convert AVI to MP4 online with our free converter. Transform legacy AVI videos to modern, universally compatible MP4 format. Reduce file sizes and improve compatibility across all devices.

100% Free

Browser-Based

No Upload Required

Free online MP4 to MP3 converter & video trimmer — no signup or download required

Input:

AVI

DIVX

Output:

MP4

Powerful Features

AVI to MP4 Converter Features

Everything you need for fast, high-quality conversion

Convert legacy AVI to modern MP4

Support for all AVI codecs

Reduce file size significantly

Maintain video and audio quality

Fast browser-based conversion

No software installation needed

How to Use AVI to MP4 Converter

Simple steps to convert your files

Upload your AVI video file

Select quality and compression settings

Click Convert

Download your MP4 file

Why Use AVI to MP4 Converter?

Benefits of using our online converter

Modernize old video collections

Reduce large AVI file sizes

Play on all modern devices

Upload to any video platform

Better streaming compatibility

Pro Tips

💡
AVI files are often much larger than MP4 - expect smaller output files
💡
Old AVI files convert perfectly to modern MP4
💡
DivX encoded AVIs are fully supported

FAQ

Frequently Asked Questions

Everything you need to know about AVI to MP4 Converter

More Tools

Explore More Conversions

Our Media Converter supports dozens of format conversions, trimming, and compression

🎵MP4 to MP3 🔊Video to Audio Converter ✂️Video Trimmer 🎧Audio Trimmer 📦Video Compressor 🎬MOV to MP4 Converter 🌐WebM to MP4 Converter 🎼WAV to MP3 Converter

View all conversion tools