How to Compress AVI Files With Freeware

Written by justin a. mann
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How to Compress AVI Files With Freeware
Reduce the size of your AVI file with freeware compression programs. (cd on cd image by Stephen Kirkby from

AVI files are a type of video file commonly output from video recording software. AVI files are typically very large because they are output from recording software. In order to reduce the file size of an AVI, it must be compressed with specialised software. There are a number of freeware compression programs available on the Internet that are capable of compressing AVI files. Compression reduces the quality of a video somewhat, but makes it much easier to share the file online due to the reduced file size.

Skill level:

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Things you need

  • Free compression software

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  1. 1

    Obtain and install a freeware compression utility from the Internet. There are numerous free programs available.

  2. 2

    Open your compression utility, click "File", and choose the "Import" option. Navigate through your computer folders to the desired video and click "Open." Wait until the file is completely loaded in the program before moving on.

  3. 3

    Click "File" and then "Export." A dialogue box or window displays numerous compression settings. Adjust the settings to the levels you desire. In order to compress the AVI file dramatically, choose a low quality or medium quality option. Choose a destination folder for the compressed file and click "Export."

  4. 4

    Navigate to the destination folder you specified and hover your mouse over the video file. Note its file size. Compare the compressed video's file size to the uncompressed video size. If you need more compression, do not compress the already compressed file, as the quality will deteriorate very rapidly.

Tips and warnings

  • Converting an AVI file to another file type--such as MPEG--is another way to dramatically reduce the file size of the video. Free compression software is able to do some conversions such as this.

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