QUANTUM Video Downloader

Detects and downloads videos and audio streams (MP4, WebM, HLS, DASH) in selectable quality and resolution.

QUANTUM Video Downloader – Save Videos & Streams in Your Preferred Quality QUANTUM Video Downloader automatically detects downloadable media files and streams on the websites you visit and makes them available right from the toolbar popup or the right-click context menu. Why install QUANTUM? Wide Format & Stream Support: Downloads direct media files (MP4, WebM, MKV, MP3, M4A) as well as adaptive streaming protocols including HLS (M3U8) and MPEG-DASH (MPD). Built-in MP4 Muxer (No External App Needed): Automatically combines separate video and audio tracks into a single standard MP4 file directly in your browser — with no artificial quality locks. Full Control Before Downloading: Easily switch between Video + Audio, Video only, or Audio only, pick your preferred resolution (e.g., 1080p, 720p), and rename files inline before saving. Clean & Convenient Workflow: Features video frame previews, duration badges, one-click direct link copying, and an optional searchable download history.