AVI to MP4 Converter

Convert your AVI video files to MP4 format with universal compatibility and quality preservation. Free and secure.

Drag and drop your AVI video here

Max file size 500MB. Free, no registration required.

How to Use

1

Upload your AVI file by clicking the upload area or drag and drop

2

Select your preferred output quality (high, medium, or low)

3

Click 'Convert' to transform your AVI to MP4 format

4

Download your converted MP4 video file

Why choose our converter?

Quality, speed, and security for all your conversions.

High-quality conversion

Precise file conversion without any loss of quality.

100% browser-based

Files never leave your device. All processing happens locally.

Works on all devices

Computer, tablet, or smartphone — any browser works.

Fast processing

Convert files in seconds with our optimized engine.

No registration

Start converting immediately. No sign-up needed.

Batch conversion

Convert multiple files at once to save time.

About This Tool

AVI (Audio Video Interleave) is a legacy video format developed by Microsoft in 1992. While AVI files can contain high-quality video, the format is outdated and has poor support on modern devices, smartphones, and web platforms. AVI files are also typically very large due to less efficient compression. Converting AVI to MP4 gives you a smaller file with better compatibility across all devices and platforms. All processing happens directly in your browser using WebAssembly technology for complete privacy.

Frequently Asked Questions

How do I convert AVI to MP4?
Upload your AVI file, select your preferred quality setting, click 'Convert', and download your MP4 file. The entire conversion happens in your browser.
Why should I convert AVI to MP4?
AVI is a legacy format with poor support on modern devices. MP4 offers better compression (smaller files), universal compatibility, and works on all smartphones, tablets, computers, and streaming platforms.
Will I lose quality when converting AVI to MP4?
With our 'High' quality setting, quality loss is minimal. The conversion uses H.264 encoding which provides excellent quality at much smaller file sizes than AVI.
How much smaller will the MP4 be?
MP4 files are typically 50-80% smaller than AVI files while maintaining similar quality, thanks to the more efficient H.264 video codec.
Are my videos secure during conversion?
Yes! All conversion happens locally in your browser using FFmpeg WebAssembly. Your videos are never uploaded to any server, ensuring complete privacy.

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