MP4 to AVI Converter
Drop your MP4 video here
Convert MP4 to AVI — free, fast, server-powered
Video is uploaded, converted server-side, then auto-deleted after 60 min.
How to Convert MP4 to AVI Online
Drag & drop or click Browse. Max 2 GB.
Choose bitrate for output quality.
Click Convert, wait for FFmpeg, then download. Auto-deleted after 60 min.
Why Convert MP4 to AVI?
Converting MP4 to AVI is useful for compatibility with older video editing software and Windows applications that require the AVI container format. AVI is also preferred for uncompressed video archival workflows.
About the MP4 Format
MP4 is the most widely used video container format on the internet. It typically uses H.264 video compression and AAC audio, delivering excellent quality at relatively small file sizes. MP4 is universally supported across browsers, devices, streaming platforms, and social media sites.
MP4 was introduced in 2001 as part of the MPEG-4 standard by the ISO. It evolved from Apple's QuickTime format and became the dominant web video format thanks to its balance of quality, compression, and universal device support.
✅ Advantages
- Universal playback support on all devices and browsers
- Excellent compression-to-quality ratio with H.264
- Supports subtitles, chapters, and multiple audio tracks
- Ideal for streaming, sharing, and social media uploads
❌ Disadvantages
- Lossy compression means some quality is sacrificed
- H.264 encoding can be slow on older hardware
- Not ideal for professional lossless editing workflows
About the AVI Format
AVI is one of the oldest video container formats, introduced by Microsoft. It can hold video and audio data compressed with various codecs, or even uncompressed video. AVI files tend to be large but maintain high quality, making them common in video editing and legacy media libraries.
AVI was introduced by Microsoft in 1992 as part of Windows 3.1. Despite its age, it remains widely used due to its simplicity and broad codec support, though modern formats like MP4 and MKV have largely replaced it for distribution.
✅ Advantages
- Simple, widely recognized container format
- Supports many different video and audio codecs
- High compatibility with Windows-based software
- Good for archival of uncompressed video
❌ Disadvantages
- Large file sizes compared to modern formats
- No native support for subtitles or chapters
- Limited streaming capability
- Outdated metadata and indexing features
Frequently Asked Questions
Why would I convert MP4 to AVI?
AVI is needed for some legacy video editing software, older media players, and specific hardware devices that don't support MP4. It's also used for uncompressed archival in certain professional workflows.
Will the file size increase?
Yes, AVI files are typically larger than MP4 because the AVI container has more overhead and fewer compression optimizations compared to the modern MP4 container.
Does AVI support subtitles?
AVI has very limited subtitle support compared to MP4 or MKV. If your video includes subtitles, consider using MKV instead.