Convert MP4 to AVI

A practical, local workflow for converting MP4 to AVI with optimo.

Last updated: 2026-03-18

To convert MP4 to AVI, run npx optimo video.mp4 --format avi. Useful for legacy tooling that only accepts AVI. Optimo handles format conversion and optimization in a single step.

Command

Convert a file by targeting the output format:

npx optimo video.mp4 --format avi

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

Why convert?

  • Useful for legacy tooling that only accepts AVI.
  • Generally not recommended for web delivery, but sometimes required.

Format notes

MP4
The most compatible web video container; a safe default for delivery.
Optimize MP4Compress MP4Resize MP4MP4 guide
AVI
Legacy container format; usually worth converting to MP4/WebM.
Optimize AVICompress AVIResize AVIAVI guide

More from MP4

MP4 → WebMMP4 → MOVMP4 → MKVMP4 → OGV

More to AVI

MOV → AVIMKV → AVI

Frequently asked questions

How do I convert MP4 to AVI?
Run "npx optimo video.mp4 --format avi" in your terminal. Optimo handles the format conversion and applies optimization in a single step.
Why convert MP4 to AVI?
Useful for legacy tooling that only accepts AVI. Generally not recommended for web delivery, but sometimes required.
Does converting MP4 to AVI lose quality?
Optimo uses sensible defaults that balance file size and quality. For lossless conversion (where possible), omit the --lossy flag. Add --dry-run to preview the result before committing.