YouTube Copy Transcript

ポップアップから YouTube 動画の文字起こしをプレーンテキストとしてコピーします。

YouTube Copy Transcript is a clean, minimal Chrome extension for copying YouTube video subtitles as readable plain text. Open a video, choose the subtitle track, click copy, and paste the transcript anywhere. Features: - Copy YouTube transcripts from a compact popup - Supports both manual and auto-generated subtitle tracks - Keeps useful timestamps - Groups tiny caption fragments into readable paragraphs, with breaks at sentence boundaries - Cleans repeated rolling captions, markup, HTML entities, and extra whitespace - Automatically prefers the subtitle track closest to your browser language - Copies the video title along with the transcript - Finishes the copy on the page (with a small confirmation) if you close the popup while the transcript is still loading - Works on tabs that were already open before you installed the extension, with no page reload needed - Localized interface in 24 languages Privacy-friendly by design: - No ads - No analytics - No tracking - No external services - No background server - Only works with the active YouTube tab - Requests only minimal permissions and no persistent access to your browsing - Copying a transcript does not mark the video as watched This extension is open source, simple, and intentionally minimal. I originally built it for myself because I wanted a fast, reliable way to copy YouTube transcripts without clutter or distractions, and I'm sharing it in case it is useful for you too.