Video Compressor

Easy to Use, Convenient to Share

You can compress video online via a web browser without any software download and installation, Windows, Mac, and Linux are all supported.
Save the compressed video to Dropbox and share on YouTube, Facebook, Instagram, etc.

Any Input Resolutions & Formats

You can compress video online free in any resolution including 4K, 1080p, 720p, 480p, 360p, 240p, and other non-standard options. Video formats like MP4, MOV, AVI, MKV, WMV can be compressed online.

Smart Output Settings

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

No Watermark Added, No File Limits

Compress video size without any watermark added, you can shrink video file size one by one without quantity limit after sign up.

Privacy security

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

Many Output Resolutions & Formats

Online UniConverter (originally Media.io) can reduce video size online by changing video resolution and format.
Resolution like 1080p, 720p, 480p, 360p, 240p, and 144p are supported, and available video formats including MP4, AVI, MKV, MPG, WMV, MOV, M4V, 3GP, FLV and WebM.