Needs a free YouTube Data API key (one-time, ~2 min): go to Google Cloud → enable YouTube Data API v3, then create an API key and paste it above. The key is stored only in your browser and used to call YouTube directly. Free tier is plenty for browsing.
Type an interest, get proven high-performing searches. Click one to run it.
Pick Trending now or search a topic, then hit Find viral videos. You'll get clips between 3M and 30M views, ranked by a virality score so fast-rising ones rise to the top.