MP4 to DivX Converter

What happens when you convert MP4 to DivX

• The video is re-encoded to MPEG-4 Part 2 video labelled DivX, with MP3 audio, in an AVI container.
• Re-encoding in a browser is slow: expect several times the video's length for HD footage on a laptop, and longer on a phone. Short and low-resolution clips finish much sooner.
• The video is labelled with the DIVX code that DivX Certified DVD players and TVs look for. Older DivX players only play up to 720 by 576, so choose 480p for them.

How to convert MP4 to DivX online

1. Press "Choose MP4 files" and select one or more files, or drag them onto the box. You can add files of any size your device can hold in memory.
2. Adjust the settings if you need to: resolution and quality control the size of the result. The defaults suit most people.
3. Press "Convert to DivX". The first audio or video conversion downloads the converter engine, about 32 MB, which your browser then keeps for next time.
4. Save each DivX with its download button. Close the tab and every trace of the files is gone from memory.

Why convert MP4 to DivX?

MP4 files usually come from phone videos, YouTube uploads, social media and streaming. People convert them to DivX because DivX is what DivX Certified DVD players, older smart TVs and car entertainment systems play from a disc or USB stick.

In short, MP4 is good at what it was made for, and DivX is the more practical choice when the file has to play, upload or edit somewhere else. MP4 plays in every browser, phone and smart TV, while DivX does not play in browsers; plays in VLC and DivX-certified players.

How to convert MP4 to DivX on Windows, Mac, iPhone and Android

On Windows

Open this page in Chrome, Edge or Firefox, drag your MP4 files in from File Explorer, and press Convert. Each DivX is saved to your Downloads folder. If you prefer a desktop program, VLC can also convert MP4 to DivX: choose Media, then Convert / Save.

On a Mac

Safari, Chrome and Firefox all work. Drag the MP4 files from Finder onto the drop zone and the DivX files land in Downloads.

On iPhone and iPad

Open the page in Safari and tap Choose MP4 files. You can pick from Photos or from the Files app. The converted DivX appears in Files, in the Downloads folder; to put it in your photo library, open it there, tap Share and choose Save Video.

On Android

Open the page in Chrome, tap Choose MP4 files and pick them from Files or your gallery. The DivX is saved to the Download folder, where any file manager can find it. Keep the screen on while a long video converts, because Android may pause a tab in the background.

Best settings for MP4 to DivX

DivX is written as MPEG-4 Part 2 video labelled DivX, with MP3 audio, in an AVI container. The Resolution setting is the one to reach for: 1080p keeps full HD detail, 720p is plenty for phones and laptops and roughly halves the size, and 480p suits email and old devices.

The quality levels map to the H.264 CRF scale where the target uses H.264, and to fixed high-quality settings for older codecs such as MPEG-2, MPEG-4 Part 2, WMV and Theora. Re-encoding always costs a little detail, so convert from the best copy of the MP4 you have.

MP4 vs DivX: the differences

About MP4 and DivX files

What is an MP4 file?

MP4 is the most widely supported video format, and H.264 video with AAC audio inside it plays on essentially every device made in the last fifteen years.

What is a DivX file?

DivX squeezed a DVD film onto a single CD, which made it the file-sharing format of the early 2000s. The codec is MPEG-4 Part 2, a generation older than H.264.

MP4 to DivX not working? Common problems

• The conversion is slow. Audio and container changes take seconds, but re-encoding video runs on your own processor. Lower the resolution to 720p, close other tabs, and keep the device plugged in.
• The tab stops or reloads on a very large file. Browsers limit how much memory one tab can use, around 2 GB and less on phones. Split long recordings or convert them on a computer.
• The DivX will not play on an old device. Try the other formats offered for MP4, or choose 720p, which older players handle more reliably.

Convert MP4 to DivX with ffmpeg

This converter runs ffmpeg inside your browser. If you would rather use the ffmpeg command line on your own computer, this command produces an equivalent DivX with the same kind of settings:

ffmpeg -i input.mp4 -c:v mpeg4 -q:v 4 -vtag DIVX -c:a libmp3lame -b:a 192k -f avi output.divx

Replace input.mp4 with the name of your file. For a whole folder of MP4 files, run the command in a loop, or drop them all on the converter above, which processes them one after another.