Online MP4 Converter

Online UniConverter instantly converts MP4 to any other formats and vice versa at no cost.

convert mp4 online
avi converter

How to convert to MP4 online?

Step 1. Drag and drop or click the Choose Files button 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/Google Drive button to get the converted MP4 videos.

FAQs about MP4 conversion

  • A file with .mp4 extension is a MPEG-4 video format, which contains video, audio, and subtitles. At present, 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.
  • Online UniConverter is your smart YouTube converter to MP4. What you need to do is to simply copy and paste YouTube URL and select MP4 as the target format, then click Convert button to begin conversion process. That's it!
  • Online UniConverter supports convert MP4 videos to MP3 audio files easily. Just open this handy free video converter, 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.
  • Sure! You can convert MP4 to GIF with Online UniConverter in easy steps:

    Step 1: Open the GIF maker page, then add the MP4 video you want to create a GIF.
    Step 2: Set the parameters as you like.
    Step 3: Click on the Convert button to start creating GIF.
  • You can convert 2 files at the same time and each smaller than 100MB for 10 times/one day with Online UniConverter when you're not registered. If you free sign up and log in, it is 25 times a day. For large files, you're suggested to upgrade the plan or apply free desktop Wondershare UniConverter.

Why Choose
Online UniConverter
to Convert MP4

No Watermark and Ads
Online UniConverter is a free online MP4 video converter, which never adds watermarks or ads to bother your conversion experience.
Support 1000+ Input/Output Formats
Online UniConverter supports converting MP4 files to a wide range 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 high as the 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 less than 24 hours.
Easy to Use
Clear guides and steps are provided for online MP4 conversions. It's easy to even anyone new.