Ultra Video Downloader – HLS、DASH、MP4/WEBM、LIVEストリームをダウンロード

あらゆるウェブサイトから動画、音声、字幕をダウンロードし、LIVE放送を録画するための無料拡張機能。

Ultra Video Downloader is a free video downloader for saving public or private video, audio, and streaming media from supported websites. It detects HLS/M3U8 streams, MPEG-DASH/MPD streams, MP4 and WebM files, audio tracks, subtitles, and live streams while you browse. Play the video, open the extension, then choose the detected stream and quality you want to download. When available, Ultra Video Downloader can combine separate video and audio tracks, extract audio, save subtitles, or record a live stream. Every download feature is free. There are no subscriptions, paywalls, download limits, or locked quality options. KEY FEATURES • Download HLS and M3U8 video streams • Download MPEG-DASH and MPD streams • Detect direct MP4, WebM, and audio files • Choose from available video qualities • Merge separate video and audio tracks • Extract audio from supported media • Download available subtitle tracks • Record supported live streams • Create organized filenames with Smart Naming • View downloads in the popup or Chrome Side Panel • Keep download history stored locally on your device HOW TO DOWNLOAD A VIDEO 1. Open a supported webpage containing the video. 2. Start playing the video so its media stream can be detected. 3. Click Ultra Video Downloader in the Chrome toolbar. 4. Select a detected video, stream, or quality. 5. Click Download. Ultra Video Downloader works with public media delivered through standard web formats. Availability depends on the website, player, and media source. YT and DRM-protected media are not supported. Only download media that you own or have permission to save.