YouTube One-Click Playlist por systheno

YouTube One-Click Playlist adds a + button directly onto video thumbnails across YouTube — Home feed, Search results, Subscriptions, Shorts shelf, and the Watch-page sidebar.

Features:
- One-Click Add — Add any video to a pre-selected playlist instantly
- Bulk Add — Add every video currently visible on the page at once
- Smart Duplicate Prevention — Optional setting to skip videos already in the target playlist
- Privacy-First — Uses your existing YouTube session. No OAuth, no API keys, no login required. Zero telemetry, zero third-party servers