# How It Works

> How Free Video Tools loads its video engine, processes files, and prepares finished downloads.

Canonical URL: https://video.teccurrent.com/how-it-works

## How it works

A media engine starts in a dedicated browser worker after a user chooses a file.

## Result

The output becomes a temporary browser download URL and never leaves your device.

## Limitations

The first processing task downloads an approximately 31 MB engine that the browser can cache.