Convert MP4 to AVI Online
Free, easy-to-use MP4 to AVI converter. Transform your MP4 videos to the widely compatible AVI format for legacy systems.
MP4 to AVI Converter
Convert your MP4 files to AVI format quickly and easily. Upload your file and download the result.
Max file size: 50MB
Why Convert MP4 to AVI?
While MP4 is currently the most widely used video format, there are still many legacy systems and older devices that work best with AVI files. Converting your MP4 videos to AVI ensures compatibility with older media players, DVD players, certain business presentation systems, and legacy software.
Benefits of Converting MP4 to AVI
- Legacy system compatibility - AVI works on older computers and media players.
- Compatibility with older software - Some older editing and playback software works better with AVI.
- DVD player compatibility - Many older DVD players support AVI but not MP4.
- Industrial/commercial display systems - Many commercial displays use AVI as a standard format.
- Simplified playback - AVI files often have fewer complications with codec requirements.
How to Convert MP4 to AVI Using Our Tool
- Upload your MP4 video file using the upload button or drag and drop functionality.
- Our converter will automatically select AVI as the output format.
- Optionally, set start/end times if you want to trim the video.
- Optionally, adjust the output FPS (frames per second) if needed.
- Solve the simple captcha to verify you're human.
- Click "Convert MP4 to AVI" to start the conversion.
- Once conversion is complete, download your new AVI file.
About MP4 and AVI Format Differences
| Feature | MP4 | AVI |
|---|---|---|
| Developed by | MPEG (standardized) | Microsoft |
| Release Year | 2001 | 1992 |
| Modern Device Support | Excellent | Good |
| Legacy Device Support | Limited on very old devices | Excellent |
| Metadata Support | Extensive | Limited |
| File Size | Generally smaller | Generally larger |
Our MP4 to AVI converter is designed to maintain high video quality while ensuring compatibility with a wide range of older systems. The conversion process transfers your video content to the AVI container format while preserving as much of the original quality as possible.
While MP4 is generally considered more modern and efficient, AVI still has its place in the video ecosystem, particularly when compatibility with older systems is a priority. Whether you're preparing content for an older presentation system, need to use legacy software, or want to ensure your videos play on older DVD players, converting to AVI can solve many compatibility issues.
Other Video Conversion Options
Frequently Asked Questions
Will converting MP4 to AVI increase the file size?
Yes, in most cases, AVI files tend to be larger than MP4 files of similar quality. This is because the AVI format uses older, less efficient compression methods. The exact size difference depends on the content, but you can typically expect AVI files to be 1.5 to 2 times larger than equivalent MP4 files. If file size is a critical concern, you might want to consider other formats.
Will I lose quality when converting MP4 to AVI?
Our converter is designed to maintain high quality during conversion. There might be a slight quality reduction due to re-encoding, but it's typically not noticeable during normal viewing. We use settings that balance quality with compatibility to ensure the best possible output for legacy systems.
Why would I choose AVI over MP4 in 2025?
In 2025, the main reason to use AVI is compatibility with legacy systems. If you need your video to play on older DVD players, industrial equipment with video playback, certain medical imaging systems, or very old computers, AVI may be more reliable. Some specialized industries and equipment still rely on AVI format because updating their systems would be costly or impractical.