Front-end gets fun with Sprunki https://sprunki.com/ where music-driven visuals transform sites into playful experiences, and Sprunky Games https://www.sprunky.org/ shows how gamification boosts UX. For audio, Dia TTS https://dia-tts.com/ makes text come alive with natural voices, while IC Edit https://ic-edit.org/ lets you tweak sound directly in the browser. Even creative spots like Gag Recipes https://gagrecipes.org/ inspire micro-interactions that make websites more engaging.