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Roblox thumbnails, game icons, textures, SFX, clothing, game UI, models that win the click.

Describe your game in one line. Get thumbnails, icons and renders in the exact sizes Roblox uses.

4 thumbnails · 4 blox

Make a free account to build this

You get 2 blox a month. Describe your game right after you sign up.

Built with Thumblox

Real thumbnails from the tools, made by the Thumblox team. Click one to see it big, with the idea and the style it was built in.

Open The Stack
A blocky avatar leaping over a lava pit in a neon obby under a bold yellow OBBY RUSH title
Thumbnail · obby, lava rising, title OBBY RUSH · Glossy 3D · 1 of 24

Every tool, one workspace

Watch a build, then take a turn. Real builds by the Thumblox team.

ThumbloxThumbnail1920×1080

Your turn · press Build for another idea · click a build to see it in place

Cartoon outline1 thumbnail · 1 bloxOpen it

Check it at the size players see it

In the feed your thumbnail is a small tile. Preview it at 300px and 150px, on light and dark, then squint.

1920×1080
Full size · example build · obby, lava rising, title OBBY RUSH
Light mode

Lava rising obby

300px

Lava rising obby

150px

Dark mode

Lava rising obby

300px

Lava rising obby

150px

Squint test

300px

If it still reads blurred, it reads in the feed.

Start with 2 free blox a month

Plans from $7 a month when your next update needs more builds.

See pricing
  • Free

    To try it out

    $0forever

    2 blox a month

    2 thumbnails

    • Thumbnail maker
    • 1920×1080 thumbnails
    • Every thumbnail style
    • No rollover
    • One account per person
  • Creator

    For your first game

    $7a month

    60 blox a month

    60 thumbnails or 30 in 2K

    • Everything in Free
    • Game icon maker
    • 2K thumbnails
    • Boost for your prompts
  • Studio

    For studios and every tool

    $49a month

    600 blox a month

    600 thumbnails or 200 in 4K

    • Everything in Pro
    • Clothing, UI maker and SFX
    • 4K thumbnails
    • All 7 tools and every setting

Good to know before you build

They're what you spend when you build. Always lowercase blox, the same word for 1 or 100.

  • Draft1 blox
  • Final3 blox
  • Game icon1 blox
  • Item icon1 blox
  • Texture1 blox
  • Clothing template2 blox
  • Sound, 2 variations1 blox
  • UI with Studio file2 blox
  • Edit1 blox

Boost is free, up to 30 a day.

The free plan gives you 2 blox every month. Unused ones don't roll over. One-time packs never expire, so they're handy for a big update.

Your blox come back automatically. The counter ticks back up and a note tells you they're back, so you never have to ask.

  • Thumbnail final1920×1080
  • Thumbnail draft1920×1080
  • 2K preset2560×1440
  • 4K preset3840×2160
  • YouTube preset1280×720
  • Game icon512×512
  • Item icon512×512
  • Texture1024×1024
  • Clothing template585×559

Images download as PNG or JPG, already at the exact size. Sounds download as MP3.

Yes. Type your Roblox username and your avatar comes in as a reference for the build.

Nothing goes to the public gallery unless you share it. Sharing is opt-in. If someone remixes a build you shared, they copy only the prompt and style, never your references.

Yes. Every export carries metadata that labels it as AI-generated, so it's clear how it was made.

13 or older to sign up. Paid plans need you to be 18+ or to have a parent's permission. The Terms have the details.

Sign-up is 13+ only, and every prompt is checked before any blox are spent. A blocked prompt costs you nothing. If something slips through anyway, hit Report on it in the gallery and we take it down.

No. Thumblox is an independent tool and is not affiliated with or endorsed by Roblox Corporation.