How to Compress MP4 Online With 3 Easy Steps?


Add MP4 video you want to compress.


Customize MP4 settings and press COMPRESS button.


Download compressed MP4 file or save to Dropbox.

Why Choose Mediaio to Compress MP4?

easy to use

Easy to Use, Convenient to Share helps to compress MP4 free online easily, which works via a web browser on Windows, Mac, and Linux systems without any downloading.
It can save MP4 file to Dropbox for sharing on Facebook, YouTube, Instagram and other devices.

any input format

Any Input Resolutions & Formats

You can compress MP4 online free in any resolution including 4K, 1080p, 720p, 480p, 360p, 240p, and other non-standard options.

customize output settings

Smart Output Settings

Smart MP4 compressor to compress MP4 online with one click, further customization like video resolution, output size, and format are also available.

no watermark

No Watermark Added, No File Limits

Compress MP4 without any watermark added, you can resize MP4 file one by one without quantity limit after sign up.

information safety

Privacy security

Mediaio is a secure HTTPS (SSL) connection website, so you can securely upload your MP4 files.
All the uploaded and compressed MP4 files are automatically removed from our serves after a few hours.

many output formats

Many Output Resolutions & Formats

Mediaio can compress MP4 by changing video resolution and format.
Resolution like 1080p, 720p, 480p, 360p, 240p, and 144p are supported, and available video formats including AVI, MKV, MPG, WMV, MOV, M4V, 3GP, FLV and WebM.