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CueMark adds a small control beside timestamped YouTube comments. Select a comment and its timestamps become saved moments that appear over the video at the matching time.

It works well for long VODs, music lists, chapters, memorable stream events, chat highlights, reaction spikes, or any comment that helps explain what happened and when.

CueMark is an independent, unofficial extension and is not affiliated with or endorsed by YouTube, Google, Neuro Archiver, Neuro-sama, Vedal, or their related communities.

• Save timestamps found in YouTube comments
• Show saved comments over the video at the matching moment
• Save several comments at the same timestamp
• Read m:ss, long-minute timestamps such as 90:00, and h:mm:ss
• Adjust overlay duration, position, width, scale, opacity, and more
• Configure previews, authors, progress bars, animation, and more
• Limit stored videos and automatically remove older timelines
• Disable persistent video storage when you only want temporary moments
• Import and export local JSON backups

CueMark stores selected timelines locally in the browser. It contains no analytics, advertising, account system, or external data service. Read more about your Privacy.

Inspiration

CueMark grew from seeing viewers preserve useful moments beneath long community VODs, including uploads from Neuro Archiver, an unofficial Neuro-sama VOD archive.

Community members often contribute detailed comments that document things such as:

• songs and chapter changes across a stream;
• notable events, raids, title changes, and memorable quotes;
• messages from recognizable chatters;
• bursts of chat reactions around funny moments;
• and more!

So those comments are already valuable indexes. CueMark simply lets a viewer bring selected entries back onto the video while watching. It does not copy or distribute a channel's comments.