Pat chicken wings dry with paper towels and place them in a large bowl.
Season wings with garlic powder, onion powder, and a light pinch of salt. Toss to coat evenly.
In a separate bowl, mix buffalo sauce with melted butter until well combined.
Add wings to the crockpot and pour the buffalo sauce mixture over the top. Gently toss to coat.
Cover and cook on LOW for 4–5 hours or HIGH for 2–3 hours, until wings are fully cooked and tender.
Optional: Transfer wings to a baking sheet and broil for 3–5 minutes, flipping once, to firm up the skin.
Spoon extra sauce over wings and serve hot.