Convert MP4 to AVI
The fastest way to convert MPEG-4 Part 14 to Audio Video Interleave online. Free, secure, and works on any device.
1How to convert MP4 to AVI
Drag & drop your MP4 file into the box above.
Click "Convert" to transform it to AVI instantly.
Save your new file to your device.
2Why use Flux Converter?
Zero Data Usage
Files are converted in your browser. No uploading means no data usage and total privacy.
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Powered by WebAssembly, conversions happen instantly on your device.
No Limits
Convert as many files as you want, of any size.
Universal
Works on Windows, Mac, Linux, Android, and iOS.
3Why convert MP4 to AVI?
Understanding the strengths and limitations of each format helps you decide when converting from MP4 to AVI makes sense. MP4 was standardized as ISO/IEC 14496-14 in 2003. Based on Apple's QuickTime format, it became the universal standard for digital video distribution. AVI was introduced by Microsoft in 1992 as part of Video for Windows. While largely superseded by MP4 and MKV, it remains widely compatible.
MP4
AVITarget
4Technical Details
| Feature | MP4 | AVI |
|---|---|---|
| Full Name | MPEG-4 Part 14 | Audio Video Interleave |
| MIME Type | video/mp4 | video/x-msvideo |
| Category | Video | Video |
| Use Cases | Video streaming and sharing, Social media video uploads, Video editing and production, Online course content | Legacy video playback, Windows-based video workflows, Uncompressed video capture, Video editing with DV codecs |
| Description | MP4 is a digital multimedia container format most commonly used to store video and audio, but can also store other data such as subtitles and still images. | AVI is a multimedia container format introduced by Microsoft. It can contain both audio and video data in a file container that allows synchronous audio-with-video playback. |
5Frequently Asked Questions
What is the difference between MP4 and AVI?
MP4 (MPEG-4 Part 14) and AVI (Audio Video Interleave) serve different purposes. MP4 is a digital multimedia container format most commonly used to store video and audio, but can also store other data such as subtitles and still images. On the other hand, AVI is a multimedia container format introduced by Microsoft. It can contain both audio and video data in a file container that allows synchronous audio-with-video playback. Converting between them lets you leverage the strengths of each format depending on your needs.
Does converting MP4 to AVI lose quality?
This depends on the formats involved. If the target format (AVI) uses lossy compression, some data may be discarded during conversion. However, if AVI is lossless, your file will be preserved at full quality. Our converter uses the best available algorithms to minimize any quality difference.
Is it safe to convert files here?
ABSOLUTELY. Unlike other sites, we do NOT upload your files to a server. All processing happens locally on your device using advanced browser technologies. Your files never leave your computer.
Is this service really free?
Yes, 100% free. No hidden fees, no watermarks, and no registration required. We support ourselves through non-intrusive advertising.
When should I use MP4 instead of AVI?
MP4 is best for: Video streaming and sharing and Social media video uploads. AVI is better for: Legacy video playback and Windows-based video workflows. Choose whichever format best fits your workflow and compatibility requirements.
Can I convert MP4 on mobile?
Yes! Our converter works on iPhones, iPads, and Android devices. All processing happens in your browser — no app download needed.
Privacy Guarantee
Your files are yours. We do not store, view, or claim ownership of any content you convert. Processing is done entirely in your browser.