muxTools
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Video Documentation

Video Editor Guide

A simple multi-clip video editor that runs entirely in your browser - trim, arrange, and mix clips with music, then export to MP4.

Overview

The muxTools Video Editor is a timeline-based editor for quick cuts: import several clips, trim each one, split at the playhead, reorder, mute, and lay a music track underneath. Everything - preview and export - happens locally with WebAssembly, so footage never leaves your device.

Key Features

  • Multi-clip timeline
  • Trim, split, reorder, mute
  • Music track with mix or replace
  • 480p/720p/1080p MP4 export
  • Fully offline processing

Use Cases

  • Stitching phone clips into one video
  • Cutting the dead air out of a recording
  • Adding background music to a montage

How to Use

1

Add one or more video clips

2

Select a clip to trim, split, reorder, or mute it

3

Optionally add a music track and set its volume

4

Pick an output resolution

5

Export and download the MP4

Settings & Properties

Timeline

Clips play in order; widths reflect duration

Export

Clips are normalized and joined, then music is mixed in

Ready to Get Started?

Launch the Video Editor tool now. No uploads, no waiting.

Launch Video Editor