Convert MP4 to AVI Online

About MP4 (source)

MP4 (MPEG-4 Part 14) is the default video container for phones, TVs, browsers, social platforms, and most editors. It typically wraps H.264 or HEVC video with AAC audio. MP4 is what YouTube, Instagram, Google Drive, and iOS expect when you upload or share video.

Where MP4 shows up:

• Playback on iPhone, Android, smart TVs, and game consoles
• Uploading to YouTube, TikTok, Vimeo, and corporate LMS systems
• Editing in DaVinci Resolve, Premiere Pro, and mobile editors
• Email attachments and messaging apps with strict format lists

About AVI (target)

AVI (Audio Video Interleave) is a legacy Microsoft container from the 1990s. It appears in old camcorder exports, downloaded videos, and industrial capture systems. AVI often contains DivX, Xvid, or uncompressed video with MP3 or PCM audio.

Where AVI is used:

• Legacy security DVR and industrial camera exports
• Old downloads and camcorder archives
• Software that never added MP4 support
• Embedded systems with AVI-only playback

Converting MP4 to AVI

Pros

• Runs on legacy AVI-only software and hardware

Cons

• Obsolete for modern sharing and streaming
• Poor subtitle and multi-track support

Caveats

• AVI is legacy output. Expect MPEG-4 Part 2 or Xvid-style video unless you choose H.264 in settings. Multi-track audio and modern subtitles are poorly supported in AVI.
• Muxara maps the primary video and audio streams. Extra subtitle or audio tracks may not carry over unless you choose subtitle handling in the converter settings.
• Uploads are processed on dedicated workers and deleted within 24 hours. For offline batch work, use the free Muxara Mac app.