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AVI to MP4

Convert AVI files to MP4 online for free. Fast, secure, and no installation required. Best AVI to MP4 tool.

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Fast & Free

Convert your files in seconds. No limitations, no watermarks.

Secure

Files never leave your device. All processing happens in your browser.

High Quality

Best in class algorithms for MP4 conversion.

What is AVI?

Audio Video Interleave

AVI is a legacy multimedia container format introduced by Microsoft in 1992. While less efficient than modern formats like MP4, it remains a standard for Windows-based software and legacy systems. It maintains high visual quality but often results in larger file sizes.

  • Windows standard
  • Lossless capability
  • Simple structure

What is MP4?

MPEG-4 Part 14

MP4 is the most widely compatible video container format today. It stores video, audio, and subtitles and is supported by almost all players, browsers, and devices. It typically uses H.264 or H.265 video compression and AAC audio.

  • Universal compatibility
  • High compression efficiency
  • Supports streaming