Roblox thumbnail size for games and videos
A Roblox icon is 512 x 512 (square). A Roblox thumbnail is 1920 x 1080 (16:9) and under 3 MB. Videos about Roblox on YouTube use the regular YouTube size: 3840 x 2160.
Inside Roblox
Experience icon and thumbnails
These are the images that sell your game on Roblox itself. The official numbers come from Roblox Creator Docs, so check there before you publish in case they change.
| Icon | 512 x 512 pixels, square |
|---|---|
| Thumbnail | 1920 x 1080 pixels, 16:9 |
| Thumbnail file size | Under 3 MB |
| Accepted file types | .jpg, .gif, .png, .tga, .bmp |
On YouTube
Thumbnails for Roblox videos
A video about Roblox is a normal YouTube upload, so it follows YouTube's rules, not Roblox's.
| Recommended resolution | 3840 x 2160 pixels |
|---|---|
| Minimum width | 640 pixels |
| Aspect ratio | 16:9 |
| File types | JPG or PNG |
| File size limit | 2 MB uploading from mobile, 50 MB from desktop |
Where it shows
Icon small, thumbnail wide
The icon is the small square players see in search and lists. The thumbnails fill the wide banner on the game page.
- +Icons show small, so use one bold subject and little or no text
- +Thumbnails are 16:9, so you can use text, but keep it short
- +YouTube thumbnails shrink to sidebar size, so keep words big
- +Don't mix the sizes up. A square icon is not a YouTube thumbnail
Design tips
Make them read at small sizes
Roblox art is bright and busy already. A little restraint is what makes yours stand out.
- +One character or one object as the clear focus
- +Three words of text or fewer on YouTube thumbnails
- +Strong contrast between subject and background
- +Keep the bottom-right corner clear on YouTube, where the duration badge sits
Common mistakes
What people get wrong
Most problems are the wrong ratio or a file that's too heavy.
- +Using a 16:9 image as the square icon and letting it crop
- +A Roblox thumbnail file over the 3 MB cap
- +Reusing a 4K YouTube export for Roblox without checking its size
- +Text so small it's unreadable on the icon
Templates
Start from a ROBLOX layout that already works
Every one opens straight in the studio. Swap the grey stand-in for yourself and change anything by typing.
Creator reviews
18,000+ creators have signed up and made 30,000+ thumbnails. Real reviews, collected through Senja.
"I used to spend 1 hour on thumbnails. Now with LaunchLens it takes 10 minutes. I love it. I recommend it for small creators just starting out."
"Good quality and fast. Does the job in seconds."
"I used to pay for these on Fiverr. LaunchLens is way cooler."
Questions, answered straight.
What size is a Roblox game thumbnail?+
1920 x 1080 pixels at 16:9, under 3 MB. Accepted file types include .jpg, .gif, .png, .tga and .bmp.
What size is a Roblox game icon?+
512 x 512 pixels, square.
Where are Roblox's official sizes?+
In Roblox Creator Docs, under experience icons and thumbnails. Check there before publishing, since Roblox can change them.
What size is a thumbnail for a Roblox YouTube video?+
The regular YouTube size: 3840 x 2160 pixels at 16:9, minimum width 640 pixels, JPG or PNG.
Can I use one image for both Roblox and YouTube?+
You can start from the same artwork, but export each at its own size. The icon is square and the thumbnails are 16:9.
Is LaunchLens affiliated with Roblox?+
No. LaunchLens is an independent tool. Roblox is a trademark of Roblox Corporation.
Make the right size for the right place
Build your Roblox thumbnail in LaunchLens and export it at 16:9.
Keep exploring
LaunchLens is an independent tool and is not affiliated, associated, authorized, endorsed by, or in any way officially connected with Mojang, Microsoft, Roblox Corporation, Epic Games, Take-Two Interactive, Rockstar Games, 2K, Riot Games, Activision Blizzard, Valve Corporation, Supercell, Electronic Arts, EA Sports, the Collegiate Licensing Company, TVGS, Arrowhead Game Studios, Sony Interactive Entertainment, or any of their subsidiaries. All game titles, logos, and characters are trademarks of their respective owners. College team names, marks, and college athlete names and likenesses are the property of their respective rights holders; build thumbnails from your own references and keep athlete and team art generic.