YouTube LiveChat Flusher (Danmaku Chat) by _y_s

Transform the standard YouTube live chat into a dynamic, scrolling "bullet chat" (danmaku) system similar to niconico or bilibili.

Note: This add-on is currently under development and may occasionally encounter issues. If you experience any problems, please try refreshing the page or switching to the mini-player.

If you prefer to use an older version, please refer to the Installation Guide (GitHub wiki)

Features

• Standalone🌐: Enjoy bullet chat even when you have the side chat window closed. (Available in Independent Mode)
• Mobile Friendly📱: Watch livestreams with bullet chat on the go. (Works on YouTube's mobile site: m.youtube.com.)
• Pinnable & Movable Messages📌*: Right-click any message that caught your eye to freeze it in place or move it where you want it.
• Real-time Translation🔠: Translate scrolling messages on the fly using your browser's built-in translator, external services (e.g., Google Translate), or even a Local LLM (OpenAI-compatible API).
• Adjustable Replay (Time-shift)⏳: Tweak the timing of chat replays for archived videos. (Available in Independent Mode)
• Picture-in-Picture with Chat (Beta)📺*: Watch your favorite content and keep the scrolling chat visible in a dedicated PiP window.
• Person Detection Support (Alpha)✨*: Focus on your fave by automatically detecting them and hiding messages behind them.

*: Desktop-only

Configurable Options (Highlights)

• Animation Speed (Scrolling Speed)
• Font Size / Number of Lines / Line Height
• Font Family & Weight (CSS syntax, e.g., Roboto, "Noto Sans JP" / 500)
• Visibility and Color for: Member/Moderator/Owner/Verified user messages, Superchats, Superstickers/Gifts, New Memberships, and Milestones.
• Stroke Color and Width
• Flow Density & Direction
• Word Filter (Banned Words List)
• Time-shift Duration (in seconds)
• User-defined CSS
• Hotkeys (Keyboard Shortcuts)

Access the config panel via the "Gear" icon, similar to video quality or annotation settings.

Detailed Documentation: Github wiki

Screenshots (Citation)

• 【#神楽めあ新衣装】一体この新人、衣装何着もっているんだい？　#新人vtuber 【神楽めあ】 - YouTube
• 【#神楽めあ新衣装】初めての新衣装お披露目配信(⋈◍＞◡＜◍)。✧♡ - YouTube

Disclaimer

This project is developed and published as a non-commercial hobbyist project, not as a business or for-profit operation. It does not infringe upon any patent rights of DWANGO Co., Ltd. (Japan).
Use at your own risk.