How to Compress AVI Online With 3 Easy Steps?


Add AVI file you want to compress.


Customize AVI settings and click COMPRESS.


Download compressed AVI file or save to Dropbox.

Why Choose Online UniConverter to Compress AVI?

easy to use

Easy to Use, Convenient to Share

Online UniConverter (originally allows you to compress AVI via a web browser on Windows, Mac, and Linux systems without downloading and installing.
You can easily download or save compressed AVI file to Dropbox for sharing on Facebook, YouTube, Instagram, and more.

any input format

Any Input Resolutions & Formats

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

customize output settings

Smart Output Settings

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

no watermark

No Watermark Added, No File Limits

Compress AVI without any watermark added, you can reduce AVI size 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 AVI files.
All the uploaded and compressed AVI files are automatically removed from our serves after a few hours.

many output formats

Many Output Resolutions & Formats

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