Roblox Thumbnail Maker
Game thumbnails (1920 × 1080) and icons (512 × 512). Free, no sign-up, no watermark.
Thumbnails players can read
- Exact sizes. 1920 × 1080 for thumbnails and 512 × 512 for icons, the sizes Roblox asks for.
- Real-size preview. See the icon at 150 px and the thumbnail at card size before you upload.
- Safe-area check. Warns when text runs into the edges or the title is too long to read.
FAQ
Roblox recommends 1920 × 1080 (16:9) for experience thumbnails, up to 3 MB, as PNG or JPG. Other shapes are stretched to 16:9, so this tool always exports the exact size.