How do I convert AVI to MP4?

Run "npx optimo video.avi --format mp4" in your terminal. Optimo handles the format conversion and applies optimization in a single step.

Why convert AVI to MP4?

AVI is a legacy format that’s rarely ideal for delivery. MP4 is smaller and far more compatible.

Does converting AVI to MP4 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.

Convert AVI to MP4

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

Last updated: 2026-03-18

To convert AVI to MP4, run npx optimo video.avi --format mp4. AVI is a legacy format that’s rarely ideal for delivery. Optimo handles format conversion and optimization in a single step.

Command

Convert a file by targeting the output format:

npx optimo video.avi --format mp4

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

Why convert?

AVI is a legacy format that’s rarely ideal for delivery.
MP4 is smaller and far more compatible.

Format notes

AVI

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

Optimize AVI Compress AVI Resize AVI AVI guide

MP4

The most compatible web video container; a safe default for delivery.

Optimize MP4 Compress MP4 Resize MP4 MP4 guide

More from AVI

AVI → WebM AVI → MOV AVI → MKV

More to MP4

GIF → MP4 MOV → MP4 MKV → MP4 WebM → MP4 OGV → MP4

Frequently asked questions

How do I convert AVI to MP4?: Run "npx optimo video.avi --format mp4" in your terminal. Optimo handles the format conversion and applies optimization in a single step.
Why convert AVI to MP4?: AVI is a legacy format that’s rarely ideal for delivery. MP4 is smaller and far more compatible.
Does converting AVI to MP4 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.