Documentation

Tool Overview

The video compressor reduces common video files to MP4 directly in your browser. Files are not uploaded to a server, making it suitable for recordings, course videos, editing clips and files that need to be shared.

Supported Features

  • Input formats: common video files including MP4, AVI, MOV, MKV, WEBM, M4V, FLV, WMV, MPEG and 3GP.
  • Output format: MP4.
  • Quality options: high, medium and low.
  • Output size options: original size, 1080p, 720p and 480p.

Use Cases

  • Compress screen recordings before uploading or sending.
  • Process course videos, meeting recordings and presentation clips.
  • Reduce file size before publishing to social platforms, web pages or chat apps.
  • Handle private videos locally without uploading them to third-party services.

Notes

  • The first run loads local FFmpeg WebAssembly files. Keep the page open while it loads.
  • Video compression can use significant CPU and memory. Large files may take longer on mobile devices.
  • If the compressed file is not smaller, try a lower quality or lower output size.