YouAssistant - YouTube Subscription Organizer

YouAssistant helps users organize their YouTube channel subscriptions. Users can create custom groups, filter channels, view videos within groups, and mark videos as watched. Basic features are available for free, while the Pro version offers multi-level grouping, automated categorization suggestions, batch management, and cloud backup and synchronization. The extension provides management tools directly on YouTube pages, aiming to make it easier for users to organize and browse their subscriptions.