Convert MP4 to AVI
Free, fast and secure — convert MP4 to AVI right in your browser.
Convert MP4 to AVI for wider compatibility
Converting MP4 to AVI gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when MP4 will not play nicely everywhere.
How to convert MP4 to AVI
- 1 Drop your MP4 file into the converter above.
- 2 It is converted to AVI automatically — no settings to fiddle with.
- 3 Download your new AVI file instantly.
MP4 vs AVI
| Feature | MP4 | AVI |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | Yes | Yes |
| MIME type | video/mp4 | video/x-msvideo |
| Best for | Sharing, streaming and uploading video anywhere with maximum compatibility. | Legacy desktop video — usually converted to MP4 for sharing and streaming. |
About the formats
MP4 video
MP4 (H.264) is the universal video container. It balances quality and file size beautifully and plays on virtually every device, browser and platform.
Strengths
- Plays almost everywhere
- Great quality-to-size ratio
- Ideal for streaming and social media
Limitations
- Lossy compression
- Less flexible than MKV for multiple tracks
- Older codecs can look dated
Best for: Sharing, streaming and uploading video anywhere with maximum compatibility.
AVI video
AVI is a long-standing Microsoft container. It is widely readable on desktops and can store high-quality video, but its files are large and it lacks modern streaming features.
Strengths
- Broad desktop compatibility
- Simple, well-understood format
- Can hold high-quality video
Limitations
- Large file sizes
- No modern streaming features
- Weak mobile/browser support
Best for: Legacy desktop video — usually converted to MP4 for sharing and streaming.