Size guide
Roblox Thumbnail Size
Roblox game thumbnails are 1920×1080 px (16:9); icons are 512×512. Full specs and free AI tools to make yours stand out on the games page.
The right size, explained
The Roblox game thumbnail size is 1920×1080 pixels (16:9) — uploads outside that ratio get cropped or letterboxed. Game icons are square: 512×512 pixels. Both accept PNG and JPG.
Thumbnails are the storefront of your experience: bright focal characters, bold readable title art and high contrast consistently outperform screenshots. Generate concept art with AI at exactly 16:9, then upscale if you started from a smaller render.
Exact specifications
| Feature | Details |
|---|---|
| Game thumbnail | 1920 × 1080 px (16:9) |
| Game icon | 512 × 512 px (1:1) |
| Formats | PNG, JPG |
| Also supported | video thumbnails (uploaded separately) |
| Moderation | all images pass Roblox review before showing |
Make yours stand out
Concept art and icons at the exact size, no cropping.
Frequently asked questions
What size is a Roblox thumbnail?+
1920×1080 pixels at 16:9 for game thumbnails; 512×512 for the game icon.
Why does my thumbnail look cropped?+
It wasn't 16:9 — Roblox force-fits uploads to that ratio. Generate or export at exactly 1920×1080.
Can I use AI art for Roblox thumbnails?+
Yes, as long as it passes Roblox moderation like any upload — original AI art of your own game's characters and scenes is common practice.