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Roblox Thumbnail Maker for YouTubers

A Roblox thumbnail maker that keeps your avatar: upload a screenshot and say what to change, or paste your video's link and get the brief written for you.

Plans from $12 a month for 40 thumbnails. Cancel anytime.

Already have a screenshot of your avatar? Start from it.

Two ways to make it

Start from a screenshot of your avatar

Upload a screenshot from your video, then type the change in one sentence. The image is yours, so your avatar, its outfit and the game stay exactly as they were; only what you ask for changes.
  • “Put the lava rising behind me”
  • “Add 1 HP in red, top left”
  • “Blur the lobby behind me”
Edit a screenshot

Start from the video's link or a sentence

Paste the link and three angles for the brief are written from the video's title, its current thumbnail and its description. Pick the Blocky World style for a block-built world, a torch or lava glow and one big focal object. It draws a generic blocky character, never an official one.
  • “A blocky player on a narrow obby ledge, lava rising below”
  • “A blocky player in a dark hallway, a shadow behind the door”
Use the Blocky World style
Diagram of the Edit route: your avatar's screenshot, one sentence of change, the finished thumbnail
The screenshot route keeps everything you didn't ask to change.

What each kind of Roblox video needs

Obbies and parkour

The jump that almost failed is the video. Show the gap, the drop and the player mid-air, not the start of the course.

"Put the lava rising under me, the last platform far away"

Roleplay and stories

One character, one feeling, one question. A crowded street of avatars reads as noise when the thumbnail is small.

"Crop to my avatar crying in the rain, WHY in white"

Simulators and tycoons

The number is the hook. Make the before and after, or the giant total, bigger than anything else in the frame.

"Make the coin pile three times bigger, 1 BILLION in yellow"

Horror games

Dark frame, one light, something behind the player. The monster half hidden is stronger than the monster in full.

"Make the room dark, a shape in the doorway, DON'T TURN AROUND"

Mistakes that cost Roblox thumbnails the click

Twenty avatars in one frame

A busy lobby screenshot turns into confetti in the feed. Crop to one avatar and the one thing happening to it.

The game's interface left in

Chat, the leaderboard and the buttons on the screen are noise at thumbnail size. Ask for them to go before you add your words.

The default sky and light

Every Roblox screenshot shares the same flat daylight. One strong colour of light on the avatar is what makes yours stand out.

Words under the duration badge

YouTube prints the video's length in the bottom-right corner. Keep the words and the face out of it.

Roblox thumbnail FAQ

Comparing tools first?

The best Roblox thumbnail makers are compared side by side, game-page tools included, and the gaming YouTubers page covers Minecraft, Fortnite and Gorilla Tag.

Edit a screenshot of your avatar

ThumbnailMaker is an independent AI thumbnail maker and is not affiliated with, sponsored by, or endorsed by Roblox Corporation. Roblox is a trademark of its owner and is named here only to describe the kind of video a thumbnail is for.