Optimize AVI for the web

Legacy container format; usually worth converting to MP4/WebM.

Last updated: 2026-03-18

To optimize AVI videos, run npx optimo video.avi. Optimo applies format-specific FFmpeg-powered compression that typically reduces AVI file size by 15–40% without visible quality loss. The original file is kept if the output is not smaller.

Command

Start here. Run optimo on a video file:

npx optimo video.avi

Tip: add --dry-run to preview changes.

When to use AVI

  • legacy source videos

Trade-offs

  • Often large
  • Not ideal for modern delivery

Related formats

MP4
The most compatible web video container; a safe default for delivery.
WebM
Web-first video format that often compresses well and is common for modern browsers.
MOV
Common container from cameras and editing tools; typically converted for the web.
MKV
Flexible container used in many workflows; commonly remuxed/converted for delivery.
OGV
Ogg video container; occasionally used for open formats, but uncommon today.

Related conversions

Convert AVI to MP4Convert AVI to WebMConvert MP4 to AVIConvert MOV to AVIConvert MKV to AVIConvert AVI to MOVConvert AVI to MKV

More for AVI

Compress AVIResize AVIWhat is AVI?

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Frequently asked questions

How do I optimize AVI files?
Run "npx optimo video.avi" in your terminal. Optimo applies format-specific FFmpeg-powered compression that reduces AVI file size while preserving quality. The original file is kept if the optimized output is not smaller.
Is AVI optimization lossless?
By default, optimo uses lossless optimization for AVI. For additional compression, add the --lossy flag to allow minor quality trade-offs for significantly smaller files.
What tools does optimo use for AVI?
Optimo uses FFmpeg under the hood with format-specific settings tuned for AVI files.