AVI to MP4 Converter
Modernise your AVI videos to universal MP4
How to convert AVI to MP4
- 1.Upload your AVI file.
- 2.Click "Convert" to start processing.
- 3.Download the resulting MP4.
About This Tool
Re-encodes AVI video to MP4 (H.264 + AAC) for maximum compatibility with modern devices, browsers, and media players. The "fast" preset balances speed and compression efficiency.
Frequently Asked Questions
AVI is an older container format. MP4 offers better compression, wider compatibility, and streaming support.
The tool uses CRF 23, which produces visually near-lossless quality for most content. The file will typically be smaller than the AVI.
Browser memory limits apply. Files up to a few hundred MB usually work. For very large files, a native tool may be faster.