Typically, video operations like trimming, cropping, and converting are server-side tasks. However, browsers possess the necessary APIs for comparable performance.

The challenge lies in preparing video data for browser-based decoding, requiring separate implementations for various video container formats. Media Parser addresses this by handling the necessary data preparation.

Remotion Media Parser is a multimedia library designed for JavaScript and the WebCodecs API, with the goal of providing an intuitive experience for web developers.

A demo showcases offline video conversion leveraging local hardware capabilities via WebCodecs: https://remotion.dev/convert

More details: https://mediaparser.dev