AVI→MP4
AVI to MP4
Convert AVI files to MP4 for smaller size and wider device support.
or drag and drop your file
By using our service you accept our Terms of Service and Privacy Policy.
🛡️100% Secure
⚡Browser-Based
🎬20+ Formats
🔒No Data Stored
✓Free Forever
How to convert AVI to MP4
Three steps to an MP4 file
11. Upload your AVI
Click “Upload” or drag an AVI file onto the page. Files up to 100 MB accepted.
22. Select MP4 output
MP4 (H.264 + AAC) is pre-selected. Adjust resolution or bitrate in advanced settings if needed, then hit “Convert”.
33. Download the MP4
Conversion finishes in seconds. The MP4 plays on phones, tablets, computers and smart TVs.
Modern, universal format
MP4 (H.264) plays on virtually every device and platform. Files are typically 30-50% smaller than AVI at the same quality.
Other formats too
Need MOV, MKV, WebM or an audio format? Convert to dozens of formats in the same interface.
Explore more free tools
Trim, resize or convert your files further. All tools work in the same browser workspace.
CONVERTER
See all features MP4 to AVI
Convert MP4 to AVI for older devices, DVD players and legacy software.
CONVERTERWebM to MP4
Convert WebM to MP4 for playback on any device. Drag in, convert, save.
CONVERTERMP3 to MP4
Combine an MP3 track with a cover image to make an MP4 video.
CONVERTERWAV to MP4
Pair WAV audio with a static image as MP4. Smaller files, easier to upload.
CONVERTERGIF to MP4
Convert GIFs to MP4 for smaller files and sharper playback on any device.
CONVERTERMP4 to DivX
Re-encode MP4 to DivX for smaller files. Compatible with legacy players.
CONVERTERMP4 to FLAC
Extract lossless FLAC audio from MP4 video. Keeps the original sound quality.
CONVERTERMP4 to FLV
Convert MP4 to FLV for legacy Flash and RTMP streaming setups.
FAQ
MP4 is smaller, plays on more devices and is the standard for web and mobile video. Most modern platforms expect MP4.
At the default high bitrate the result looks very close to the original AVI. You can adjust quality in advanced settings.
Yes. Video and audio streams are re-encoded together, so timing stays correct.
Files up to 100 MB are accepted. Larger files take a bit longer but follow the same process.
All transfers use HTTPS. Files are processed in memory and deleted from our servers within minutes after conversion.