MP4 to AVI Converter
Convert MP4 to AVI online for free. Change video format for playback, editing, uploads, social sharing, or better compatibility across devices and platforms.
Converting MP4 to AVI re-encodes the video into the AVI container. Resolution and frame rate are preserved by default, and the audio track is copied without re-encoding when codec compatibility allows. File size depends on the chosen output codec.
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Checking files and selected output formats.
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Convert MP4 Video in 3 Steps
Re-encode a video for broader playback support, easier editing, smaller files, or platform-specific upload requirements.
Drop your MP4 video onto the tool or click to browse. Our converter handles all major codecs including H.264, H.265, VP8, and VP9 inside the MP4 container.
Your video is re-encoded into the AVI container with the optimal codec. Resolution and frame rate are maintained, and the audio track is preserved without re-encoding when possible.
Download your converted AVI video ready for playback, editing, or uploading to any platform. Files are automatically deleted from our servers within 24 hours.
Why Convert MP4 to AVI
AVI has been the standard video container on Windows since 1992. Every video player, editor, and media tool on Windows opens AVI files without any additional codec installation.
AVI supports fully uncompressed video streams for applications requiring zero quality loss. Scientific imaging, video analysis, and archival workflows benefit from raw, unaltered frame data.
AVI uses the straightforward RIFF container format with minimal overhead. Its simplicity means fewer compatibility issues, easier recovery from file corruption, and reliable frame-by-frame access.
Industrial video systems, security cameras, medical imaging equipment, and older editing systems often require AVI input. Converting to AVI ensures compatibility with established hardware infrastructure.
Many legacy video editors handle AVI files with the best timeline accuracy and scrubbing performance. AVI's simple interleaved structure allows precise frame-by-frame navigation and cutting.
MP4 vs AVI: Side-by-side
Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.
| Property | MP4 | AVI |
|---|---|---|
| Full name | MPEG-4 Part 14 | Audio Video Interleave |
| Year introduced | 2001 | 1992 |
| Developer / standard body | MPEG | Microsoft |
| MIME type | video/mp4 | video/x-msvideo |
| File extension | .mp4 / .m4v | .avi |
| Compression | H.264 or H.265 codec | Codec-dependent (DivX, XviD, MJPEG) |
| Color / data depth | 8/10-bit | Codec-dependent |
| Max dimensions / size | Codec-dependent (up to 8K) | Codec-dependent |
| Transparency | No | No |
| Animation | No | No |
| Standard / specification | ISO/IEC 14496-14 | Microsoft RIFF |
| Best for | Universal video compatibility — plays on every device | Legacy video files, archival |
About the MP4 Format
MP4 (MPEG-4 Part 14) is an ISO standard multimedia container format based on Apple's QuickTime file structure. It is the most widely supported video format in the world — capable of playing on virtually every device, browser, and platform without additional software. MP4 files typically contain H.264 or H.265 video streams paired with AAC audio, though the container can hold a variety of codec combinations.
MP4 is the default choice for video distribution across the web, social media, streaming platforms, and mobile devices. Its combination of broad compatibility, efficient compression, and reasonable quality makes it suitable for everything from casual smartphone recordings to professional video delivery. The main limitations of MP4 are its relatively basic subtitle support compared to MKV, and the fact that some advanced codec configurations may not be universally playable on older devices.
MP4 to AVI FAQ
Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert MP4 files to AVI.
How do I convert MP4 to AVI online?
Why would I convert MP4 to AVI?
Will converting MP4 to AVI affect video quality?
How will file size change when converting MP4 to AVI?
Is AVI a good target for device compatibility?
Can I batch convert multiple MP4 files to AVI?
Is it safe to convert MP4 to AVI online?
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