Private by default
Local size-tool uploads stay in your browser. Official characters are cached privately for up to 24 hours; only background descriptions go to Tuzi.
Thumbize
Roblox thumbnail generator for your real character.
Load your current Roblox avatar, choose an AI background, then adjust the title and character placement. Export a game thumbnail, square icon or YouTube cover without asking AI to redraw your character.
Open the workspaceFree local size tool also available below
Output presets
Ready for the next step
Game thumbnail
16:9
Game icon
Square
YouTube thumbnail
16:9
Create and adjust your thumbnail
Load a real Roblox character, generate a background with Tuzi, then change the title, style, position and output size without regenerating the background. Character poses are not editable.
AI generation is not configured on this installation. Character lookup also requires private-cache maintenance; the free local size tool needs neither service.
The composed preview appears after a background is ready.
1920 × 1080 PNG. Square output is recomposed, not cropped from a horizontal cover. Editing a completed design does not call the image model again.
Honest product surface
Generation availability is checked on this installation. Missing credentials and unfinished billing do not turn into fake results.
Useful output now
Choose center crop or contain, then download true PNG files at three exact sizes.
Tools and availability
Local tools and a focused creation workspace
The size tool runs locally without an account or database. The workspace connects official character lookup, persistent background tasks and adjustable composition. AI generation requires this installation’s Tuzi configuration and account credits. Checkout is available only after the separate payment verification gates pass.
Use the live size tool