Compress AVI Online

Reduce AVI file size in just a few clicks!
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Make AVI files smaller

Our online AVI file size reducer will help you compress your videos to make them easier to share over email or instant messaging apps without sacrificing video and audio quality! On top of that, Flixier is also an online video editor, meaning that you’ll be able to use it to cut, crop, trim, add transitions, generate subtitles and more!

Compress AVI Online

Change video Aspect Ratio

On top of video compression, you can also use Flixier to convert a video from landscape to portrait and vice versa in order to post it to your Stories or share it on your Instagram feed.

Cut, trim and crop your video

You can use Flixier to crop, trim or crop videos after compressing them, allowing viewers to focus on what’s important and reducing file size even further.

Convert videos to MP4

Flixier supports all the most popular video formats (including MKV, AVI, WMV, MOV and FLV) and converts them to MP4 in order to make them easy to watch on a wide range of devices.

Add images, GIFs and text to videos

Use Flixier to overlap images, GIFs and text on your videos in order to make them funnier or engaging for viewers. It’s as easy as dragging and dropping them over to the video!

How to make AVI files smaller :

How to make AVI files smaller :

Drag your video over to the compressor window or press the Upload button to select the video that you want to compress.


Choose whether you want to use Bitrate or CRF compression and use the slider to pick how much smaller you want your video to get. Finally click the Compress button to start the compression process. The whole thing should take a couple of minutes at most.


After compression is over, you’re free to download the video to your computer and share it anywhere you want, or click the Edit video button to edit your video further using Flixier!

Why use Flixier to compress AVI files online:

It’s lightning fast

Our online video compressor will help you reduce the file size of your AVI videos quickly and easily, ensuring that you can share them online in time.

Enjoy a simple, intuitive interface

We made Flixier as simple and easy to understand as possible to make it easy for anyone to use our tool without any previous video editing experience.

Compress videos from any computer

Because Flixier is cloud-based, the compression process won’t put any strain on your computer, meaning that you can use it to compress videos fast on any operating system!

Free AVI compressor

Our AVI compressor tool is entirely free and lets you compress any video without paying anything or creating an account.


I’ve been looking for a solution like Flixier for years. Now that my virtual team and I can edit projects together on the cloud with Flixier, it tripled my company’s video output! Super easy to use and unbelievably quick exports.

Steve Mastroianni -

My main criteria for an editor was that the interface is familiar and most importantly that the renders were in the cloud and super fast. Flixier more than delivered in both. I've now been using it daily to edit Facebook videos for my 1M follower page.

Evgeni Kogan

I'm so relieved I found Flixier. I have a YouTube channel with over 700k subscribers and Flixier allows me to collaborate seamlessly with my team, they can work from any device at any time plus, renders are cloud powered and super super fast on any computer.

Anja Winter, Owner, LearnGermanWithAnja

Frequently asked questions.

Frequently Asked Questions

If you have any further questions, Get in touch with our friendly team
If you have any further questions, Get in touch with our friendly team

Can I compress an AVI file to MP4?

Can I compress an AVI file to MP4?

Of course! Flixier automatically converts every file you upload to MP4 to make it easily playable by a wide range of devices, so when you upload an AVI video to compress it, you’ll end up with an MP4 video once compression is done.

How do I reduce the size of an AVI file?

How do I reduce the size of an AVI file?

To reduce the size of an AVI file, drag it over to the Flixier video compressor tool, use the Slider to determine how much you wish to shrink your file and then press the Compress button.

Can I compress an AVI file on Mac?

Can I compress an AVI file on Mac?

Of course! Flixier runs entirely in your web browser so you can use to compress AVI files on Mac, Windows, ChromeOS and Linux!

Can I compress an AVI file on Mac?

Can I compress an AVI file on Mac?

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