Convert MP4 to AVI
Some older TVs, USB media players and DVD players with DivX support won't play an MP4 but will play an AVI. Convert your MP4 to an AVI they can read, in your browser, with no upload.
- MP4
- MOV
- AVI
- VOB
- Runs in your browser
- 100% free
- Private
How to convert MP4 to AVI
Load your MP4
Drop the .mp4 file onto the page, or click to choose it.
Choose AVI as the output
Set the output to AVI and click Convert to AVI. The video is re-encoded to MPEG-4 Part 2 and the sound to MP3 on your own computer.
Download the AVI
Browsers can't play AVI, so there is no preview. You see the file size and a download button. Copy the file to a USB stick for your TV or player.
Why people use Adapterry
Nothing is uploaded
Your videos are processed in your browser and never leave your device.
No account needed
Open the page and start. No email, no password.
No watermark
Your video comes out clean, with no logo stamped on it.
Works offline
Once the page and video engine have loaded, you can keep working without an internet connection.
Supported formats
Add MOV, AVI, VOB or MP4 files, or a mix of them, and get back one file in any of those four formats. MP4 is the one that plays almost everywhere.
What kind of AVI you get
The AVI holds MPEG-4 Part 2 video, the same kind of video DivX and Xvid players read, with MP3 sound. That is the mix many older TVs, media players with USB playback and DVD players with DivX support expect.
The frame size of your MP4 is kept up to 1920x1080 (1080x1920 for portrait video), and frame rates above 60 fps are capped at 60. Every MP4 to AVI job is a full conversion, so a long video can take several minutes. Keep the tab open until it finishes.
Questions and answers
Why won't my old TV play an MP4 from a USB stick?
Some older TVs and players only read AVI files with DivX style video. This converter makes that kind of file: MPEG-4 Part 2 video with MP3 sound.
Can I preview the AVI before downloading?
No. Browsers can't play AVI files, so the result goes straight to download. You still see the file size. Play it on your TV or player to check it.
Does MP4 to AVI re-encode the video?
Yes, always. AVI uses different video and audio codecs from MP4, so the picture and sound are fully converted on your computer.
Will my DVD player with DivX support play the file?
It should, since the AVI uses MPEG-4 Part 2 video, the kind DivX players read, with MP3 audio. Players differ, so test a short clip before you convert a long film.
Is there a size limit for MP4 to AVI?
There is no fixed limit. Your device's memory sets the ceiling, so long videos run best in Chrome or Edge on a desktop computer.