avi converter

How to Convert MP4 Videos
Online and Free

Step 1. Drag and drop or click the + icon to import any video files you want to convert to MP4.

Step 2. Choose MP4 as the output format from the Convert all files to > Video/Audio tab.

Step 3. Hit the CONVERT button to start video to MP4 process.

Step 4. Click the DOWNLOAD or Save to Dropbox button to get the converted MP4 videos.

Why Choose
Online UniConverter
to Convert MP4

Watermark and Ads Free
Online UniConverter is a free online MP4 video converter, which never adds watermarks or ads to the converted videos.
Support Multiple Formats
Online UniConverter supports converting MP4 files to a list of video/audio formats, including MOV, AVI, MKV, WAV, etc. and Android/iPhone compatible formats.
Browser Compatible
Online UniConverter also works with Google Chrome, Safari, Firefox, and your smartphones without limitation.
High Quality Output
The converted videos will keep the quality as higher as original, and you can download or save to Dropbox easily.
Privacy and Safety
We keep your information secure all the time. All uploaded files will be deleted from the server after 24 hours.
Easy to Use
Clear guides and steps are provided for online MP4 conversions. It's easy to even anyone new.

FAQ About MP4 Conversion

  • A file with .mp4 extension is a MPEG-4 video format, which contains video, audio, and subtitles. Now, MP4 is the most popular video codec format and can be opened by almost all players and platforms. So, if you're having trouble with playing videos, convert them to MP4 is the right choice.
  • You can convert online YouTube videos to MP4 with Wondershare UniConverter, which supports most online sites to get online videos down.
  • Online UniConverter supports convert MP4 videos to MP3 audio files easily. Just open the online converter, and drag MP4 files to the interface, then choose output format as MP3 from the Audio tab. Finally, click the CONVERT button and wait for downloading.
  • You can convert MP4 to GIF with Online UniConverter. Firstly, open the GIF maker page, then add the MP4 video you want to create a GIF. Secondly, set the parameters as you like. Finally, click on the CONVERT button to start making GIF.
  • You can convert 2 files at the same time and each smaller than 100MB for 5 times/one day with Online UniConverter when you're not registered. If you free sign up and log in, it is 10 times a day. For large files, you should upgrade the plan or use desktop Wondershare UniConverter.

Convert from MP4 & Convert to MP4

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