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YouTube Auto Expand Comments and Replies ✅

Reliably auto-expands YouTube comments, replies, and "Show more replies". Fully updated for current UI.

Author
koyasi777
Daily installs
2
Total installs
8
Ratings
1 0 0
Version
3.0.0
Created
2025-04-24
Updated
2025-04-25
Size
10.8 KB
License
MIT
Applies to

YouTube Auto Expand Comments and Replies ✅

📌 Overview

Tired of clicking "Show more replies" over and over on YouTube?
This userscript automatically expands all comments, replies, and continuation threads on YouTube video pages — seamlessly and reliably.

  • 💯 Fully compatible with the latest YouTube UI
  • 🔁 Works on scroll and dynamically loaded content
  • ⚡ Powered by MutationObserver + IntersectionObserver for maximum performance

⚙️ How to Install

  1. Install Violentmonkey or Tampermonkey in your browser
  2. Install the script from this link:
    👉 Install this userscript

💡 Key Features

  • Automatically clicks to expand comments and replies
  • Also expands "Show more replies" continuation threads
  • Avoids re-clicking already expanded threads
  • Works even during scrolling or when switching videos
  • Robust selector design to withstand UI changes

🌐 Matching URLs

// @match https://www.youtube.com/*

🧠 Technical Details

  • Uses MutationObserver to watch for dynamically loaded comment threads
  • Uses IntersectionObserver to detect buttons coming into view
  • Utilizes Set to track expanded threads and avoid redundant clicks
  • Throttled execution for scroll and DOM mutation events

🛠 Troubleshooting

  • If it doesn't seem to work, check for conflicts with other YouTube-related userscripts
  • There's a short initial delay after page load (intentional for stability)

📜 License

MIT License
Feel free to modify or redistribute. Use at your own risk.

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