Blox Fruits raids, Doors runs, Adopt Me trades, Brookhaven roleplay — generate high-CTR Roblox thumbnails with AI in seconds. No Photoshop, no designer.
Top Roblox channels (Flamingo, KreekCraft, Poke) use bright saturated colors, a shocked avatar face, and simple 2-3 word text (NEW, RARE, TRADE, SCARY). AI nails all three in one prompt.
Popular Roblox prompts
"Blox Fruits — awakened dragon vs kitsune, ocean, INSANE text"
"Doors — Rush jumpscare in dark hallway, SCARY text"
"Adopt Me — legendary shadow dragon trade, RARE text"
"Brookhaven — new house tour, mansion, LUXURY text"
"Rainbow Friends — chapter 4 leaked, NEW text"
Put your Roblox avatar in the thumbnail
Upload a screenshot of your avatar and AI drops it into the game scene — same trick top channels use to make fans instantly recognize your videos.
Frequently asked questions
Does it know popular Roblox games?
Yes — Blox Fruits, Doors, Adopt Me, Brookhaven, Rainbow Friends, Pet Simulator, Tower of Hell, and more.
Can it draw my Roblox avatar?
Yes. Upload a screenshot of your avatar and AI places it in the scene with the correct blocky Roblox style.
How many free thumbnails per day?
3 free AI Roblox thumbnails daily. No credit card.
Is it kid-safe?
Yes. Content is filtered for family-friendly output suitable for Roblox's audience.
Correct YouTube size?
Yes — 1280×720 HD (16:9), exactly what YouTube recommends.
Try ThumbForge free
3 free AI thumbnails every day. No credit card. Sign in with Google.