Comment Vaccinator – YouTube Comment Filter

Clean up YouTube comments by automatically filtering repetitive date comments, keyword spam, low-effort posts, and unwanted phrases.

Comment Vaccinator helps you focus on meaningful discussions by removing comments such as "Anyone here in 2026?", "First!", "Subscribe", repetitive keywords, and other low-value clutter in real time.

Customize filtering with date detection, word-count rules, keyword blacklists, emoji-aware counting, and live comment statistics.

Detects and filters date-based comments in both English and Hindi (Devanagari) formats. This extension surgically removes date-like comments, word-count spam, and keyword clutter from YouTube — automatically, in real time.

🗓️ Date Filter Automatically hides comments containing date patterns: “Anyone here in 2026?”, “Watching this today!”, “Jan 12, 2025” “12/04/24”, “Monday gang”, “11th of September” Supports English + Hindi/Devanagari date formats Toggle ON/OFF anytime — comments reappear instantly

📏 Word Count Filter Two modes to control comment length: Max mode — Hide comments with FEWER words than your threshold (zaps short spam like “Nice” or “First!”) Min mode — Hide comments with MORE words than your threshold (zaps long rambles) Adjustable range: 3–50 words Optional Strict Emoji Cleanup removes emojis before counting for accurate results

🔑 Keyword Blacklist Block comments containing specific words: Comma-separated list (e.g., ad, sponsor, first, subscribe) Works independently of date filter Case-insensitive matching

🛡️ Keyword Whitelist Protect comments containing specific words: Comma-separated list — matching comments always stay visible Overrides all other filters — whitelist always wins Green border, green-tinted background when enabled

🔧 Custom Patterns 10 preset regex patterns for common spam + add your own: Presets ship inactive until you enable the toggle Add/edit/delete custom patterns via regex editor Reset to defaults restores the 10 OOTB presets (your custom patterns are kept)

🎬 Per-Video Toggle Pause all filtering on the current video: Toggle in the popup pauses/resumes filtering for that video Works across playlists and video navigation Remembers disabled videos (up to 50)

📤 Export / Import Settings One-click export to JSON, import to restore or share configurations: Exports all filter settings, custom patterns, and toggle states Validates JSON on import with schema version check Imports with confirmation before overwriting

📊 Comment Stats Real-time statistics right in the popup: Total comments counted Hidden comments (zapped by -inator) Visible comments (passed all filters) Switch between list view and chart view (donut chart)

🌙 Dark Mode Ready Automatically adapts to your system’s light/dark theme preference.

⚡ Automatic & Lightweight No background processes — only activates when you open YouTube Uses MutationObserver to catch newly loaded comments instantly Zero data collection — all settings stored locally in your browser

What it does NOT do ❌ No data collection, analytics, or tracking ❌ No ads or sponsored content ❌ No account required ❌ No background scripts running constantly