Cinematic Chapters for YouTube™ – Timestamp Comments

Scan YouTube comments for timestamps. Turn them into chapters with thumbnails and watch in fullscreen or Picture-in-Picture.

Scan YouTube comments and jump to the scenes you want. Review the timestamps in playback order and add them as chapters to the timeline below the video. Nearby timestamps are grouped together. Open a group to split out any item you want to see separately. Chapters with thumbnails follow playback, so you can see what’s playing and click to jump to another scene. ■ Immerse yourself in the video The timeline follows playback in real time, keeping the current chapter in view. Click to skip straight to the scene you want. In theater mode, the timeline blends into the video area for an immersive viewing experience. ■ Watch on a bigger screen Display chapters as a timeline in fullscreen too. Choose from three display options: with the video controls, always visible, or off. ■ Watch while you work Picture-in-Picture brings the video and chapters into a separate window, so you can keep watching while you work. Show the video and chapter list stacked or side by side, or arrange chapters in a timeline below the video. Use the layout control and adjust the list height to change the arrangement. ■ Features 【Chapter creation】 ・Review timestamps found by the scan, split out individual items from a group, and add the result to your chapters. ・Turn timestamps in a comment you choose into chapters with thumbnails. ・Timestamps in the video description are supported too. Chapters are prepared automatically when you open the video. ・Switch between the original comment, scan results, and the video description. ・Chapters already set up for the video are supported too. 【Display formats】 ・Timeline: arrange chapters with thumbnails horizontally just below the video. ・List: display chapters in a vertical list that you can move and resize. ・Card: show the current chapter in a small card at the bottom right of the page. ・Separate window: show the video and chapters in a Picture-in-Picture window. Choose a stacked or side-by-side layout. In the stacked layout, adjust the list height to switch between a list and a timeline. You can also collapse the chapter list. ・Fullscreen: display chapters as a timeline, with the video controls, always visible, or off. ・Highlight the current chapter and scroll automatically as playback progresses. 【Playback controls】 ・Play/pause, previous and next chapter, volume, and playback speed. ・Click a chapter to jump to that scene. ・Preview the thumbnail and chapter text at a destination on the progress bar. ・Press and hold for temporary 2x playback. ・Keyboard controls are also available in the separate window. 【History and sync】 ・Save videos whose chapters you open to your history. Open them again from the toolbar icon. ・Bookmark up to five videos in your history. ・Restore the comment you previously opened when you return to the video. ・Sync history and opened comments across Chrome browsers signed in to the same Google account. 【Language support】 ・Available in 10 languages: Japanese, English, German, Spanish, French, Korean, Portuguese (Brazil and Portugal), and Chinese (Simplified and Traditional). ■ How to use 1. Click “SCAN” at the bottom right of a YouTube video page. 2. Open the scan results list to review the timestamps. Expand a group and split out any items you want to keep separate. 3. Click “Add to chapters” to open the timeline below the video. To use a timestamped comment directly, click “Show as chapters” on that comment. If the video already has chapters or timestamps in its description, chapters are prepared when you open the video. ■ What is stored Opened comments, added scan results, video details, playback position, and display settings are saved on your device. When you reopen the same video, the added scan results and the last source you selected are restored. When Chrome sync is enabled, history and the original comments you opened sync across Chrome browsers signed in to the same Google Account. Scan results and their selection, playback position, thumbnails, and display settings stay on this device. Data is stored on your device and, for synced items, in your Chrome sync storage. You can delete individual history entries or clear the history from the toolbar icon. ■ About the listing images The listing images use AI-generated images of a fictional live performance. They are not footage from a real video. When you use the extension, it displays thumbnails obtained from the video being played.