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VOD Highlight Analyzer

Analyzes chat activity of YouTube, Twitch and Kick VODs and displays a clickable density chart to jump to highlights.

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Autore
SkAnon
Installazioni giornaliere
4
Installazioni totali
128
Valutazione
1 0 0
Versione
2.0
Creato il
07/06/2026
Aggiornato il
14/06/2026
Dimensione
142 KB
Licenza
MIT
Applica a

📊 YouTube, Twitch & Kick VOD Highlight Analyzer

Image

An advanced chat activity analyzer for YouTube, Twitch, and Kick VODs. It scans live chat replays in the background and renders a highly interactive, responsive density chart directly below the video player. Click anywhere on the chart to instantly jump to highlights, view rotating message tooltips, filter out spam keywords with a togglable blacklist, track chat sentiment, and search/seek through the chat logs.

🚀 Key Features

  • ⚡ Click-to-Seek Density Chart: Renders a beautiful line chart representing chat message frequency (Messages per Minute). Clicking any point on the chart seeks the player directly to that time.
  • 💚 Full YouTube, Twitch & Kick Support: Works seamlessly across all three major platforms, handling client-side single-page app redirects, navigation updates, and custom player styles.
  • 🧠 Dynamic Chat Sentiment Analysis: Plots a secondary sentiment trajectory line (from -1.0 for fail/rage to +1.0 for extreme hype). The graph, overall stats, and tooltips reflect the emotional baseline of the stream in real-time. Includes a Sentiment Gain slider in settings to dynamically scale the visual curves on the chart.
  • 🥾 Emote Sentiment Bootstrapping: Dynamically calculates and bootstraps sentiment scores for custom, unrecognized stream emotes by analyzing standard sentiment words and emojis sent in proximity to them.
  • ⛰️ Smart Auto-Seek (Valley-Seek): Automatically analyzes the activity curve up to 60 seconds prior to a peak. Rather than jumping back by a static lead-in buffer, it locates the local activity "valley" (the quiet build-up before the hype) and seeks there.
  • 🔍 Search Message Logs: A dedicated search panel lets you query loaded logs by author name or message text. Includes an option to filter and display only Super Chats (YouTube only) styled with tier colors and amount badges. Click the ⏱ HH:MM:SS button on any search result to jump directly to that message's time.
  • 🚫 Togglable Keyword Blacklist: Filter out bot messages, spam, or spoilers. Supports toggling the blacklist on/off and case-sensitive/insensitive matching. The chart, stats, and spikes update instantly.
  • 🏷️ Expanded Filter System with Emoji Support: Track activity using predefined sentiment tags (Laughter, Hype, Shock), custom search tags, or the top 10 most frequently used emotes. Includes a toggle to include/exclude standard pictorial emojis in the auto-detected list.
  • 💾 IndexedDB VOD Cache: Automatically caches scanned chat logs in the browser. Returning to a previously analyzed VOD loads the data instantly with zero load time.
  • ⚙️ Configurable Cache Limit: Customize how many VODs the script will cache (default: 5) per domain. Lowering the limit immediately prunes older entries.
  • 📈 Peak Amplification Sliders: Scale and amplify graph peaks dynamically using Peak Gain controls to easily distinguish smaller spikes in quiet streams.
  • 💬 YouTube Super Chats Visualization: Logs YouTube Super Chats, plotting them as color-coded scatter dots (Teal, Yellow, Pink, Red) on the chart. Features color subtoggles to filter visible tiers, a visual stacking algorithm to prevent overlapping clutter, and custom rich HTML tooltips. Click a dot to seek the player directly to that time.
  • 🍊 Real-Time Playback Position Playhead: Draws a vertical line on the chart canvas representing the current playing time, topped with a triangular indicator that slides smoothly as the VOD plays.
  • 💬 HTML Tooltips with Comment Rotation: Hover over any point on the graph to see a rich HTML tooltip displaying overall activity, filtered keyword activity, color-coded sentiment level (Neutral, Positive Hype, Mild Positive, Negative/Fail/Rage, Mild Negative), and rotating sample comments (refreshed every 500ms).
  • 🔥 Automated Highlight Spikes: Automatically identifies the top 5 highlight moments based on message density spikes, spacing constraints, and average activity thresholds.
  • 📤 CSV Export: Download the entire parsed chat log with timestamps, offsets, author names, and text runs in a clean CSV file.
  • 🙈 Space-Saving Collapsible UI: The control panel initializes in a collapsed state to preserve native page aesthetics and avoid watch-page clutter, restoring layout state seamlessly.

⚙️ How it works / Settings

All controls are hidden inside collapsible details blocks to keep your YouTube, Twitch, and Kick watch pages clean and clutter-free:

  1. 🚀 Load Chat / Re-scan: Triggers the platform-specific background fetcher (YouTube chat scraper, Twitch API GraphQL fetcher, or Kick API chat fetcher with live block retries) to scan chat history.
  2. ⚙️ Graph Settings:
    • Main Peak Gain / Filter Peak Gain: Slider controls to amplify or reduce peak visualization.
    • Seek Mode: Radio buttons to choose between Manual mode (uses a fixed lead-in buffer offset) or Auto (Valley-seek) mode.
    • Seek Lead-in Buffer: Sets how many seconds before a highlight you want the player to seek to (default: 10 seconds, only active in Manual mode).
    • Enable Blacklist / Case Sensitive / Blacklist words: Checkboxes and input field to exclude specific words or phrases from the graph.
    • Sentiment Graph: Toggle checkbox to show or hide the secondary sentiment trajectory line, plus a Sentiment Gain slider (visible when enabled) to scale visual curves.
    • Show Super Chats on Graph: Toggle checkbox to show/hide YouTube Super Chats on the graph, plus color-coded subtoggles (Teal, Yellow, Pink, Red) to filter visible tiers (YouTube only).
    • Include Emojis: Toggle checkbox to include/exclude standard pictorial emojis in the auto-detected filters.
    • Cache Limit (VODs): Controls the maximum number of cached streams stored in IndexedDB.
  3. 🔍 Search Message Logs: Input box to find quotes, clips, or authors, displaying seekable results. Toggle "Super Chats Only" to display only premium Super Chats (YouTube only).
  4. 🏷️ Keyword Filters: Predefined laughter, hype, and shock tags, plus the top 10 most frequently used emotes or emojis during the stream.
  5. 🔥 Top Highlight Spikes: Displays five pill buttons corresponding to the largest chat spikes. Click any pill to jump to that spike.

🔒 Security & Performance

  • No Elevated Privileges (@grant none): Runs fully sandboxed in the client context with no elevated extension capabilities required.
  • Origin Isolation: Adheres to browser same-origin policies. Caches are stored locally on their respective domains (youtube.com, twitch.tv, and kick.com) via IndexedDB.