How to Resize Video Online With 3 Easy Steps?


Add videos you need to resize.


Choose resolution, output size, format, and click COMPRESS.


Download the resized video or save to Dropbox.

Why Choose Online UniConverter to Resize Video?

easy to use

Easy to Use, Convenient to Share

Online UniConverter (originally can resize video online and free within several clicks. It works on Windows, Mac, and Linux systems via a web browser.
You can save the resized videos to Dropbox and share on Instagram, Facebook, YouTube and so on.

any input format

Any Input Resolutions & Formats

You can resize 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.

customize output settings

Smart Output Settings

Smart video resizer to resize video online free with one click, further customization like video resolution, output size, and format are also available.

no watermark

No Watermark Added, No File Limits

Resize video online without any watermark added, you can resize video one by one without quantity limit after sign up.

information safety

Privacy security

Online UniConverter (originally 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 formats

Many Output Resolutions & Formats

Online UniConverter (originally can resize video 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.