How do I preview a Roblox shirt before uploading it?

Drop the PNG into the Shirt slot above. The tester wraps it onto a 3D avatar and lets you turn it to see the front, back and sleeves. Add pants or a T-Shirt in their slots to preview a full outfit. Roblox Studio is still the final check.

What size should a Roblox shirt PNG be?

A shirt or pants file should be 585 × 559 pixels. A T-Shirt is a square picture, and 512 × 512 is the usual size. The file check tells you if the image you uploaded is a different size and what to do about it.

Does the tester upload my file anywhere?

No. The image is read and checked on your device. RBXShirt keeps your current work in your own browser storage so it can move between tools, and nothing is sent to a server.

Does the preview match Roblox exactly?

It is close but not identical. The tester uses a simple R6 block avatar, so lighting, shading and avatar shapes differ from Roblox. Use it to catch misplaced artwork and bad seams, then confirm in Roblox Studio.

Does it work for R15 avatars?

Not yet. The preview uses the classic R6 body. Classic clothing maps the same way onto R15, but the shoulders and limbs are shaped differently, so R15 will be added only after it has been checked against Roblox.

Will passing the file check get my shirt approved?

No. The checks look for layout and file problems that are easy to see. Roblox applies its own review to every upload, and RBXShirt is not affiliated with Roblox.

Roblox Shirt Tester

The Roblox shirt tester shows your shirt, pants or T-Shirt PNG on a 3D avatar before you upload it to Roblox. Drop a file in, turn the avatar to check the front, back and sleeves, and read a file check that flags wrong sizes, empty faces and seam problems. It is free and needs no account.

Last updated 2026-11-11

Shirt, pants and T-Shirt
Full outfit preview
Files stay on your device

You can also paste an image (Ctrl or ⌘ + V) into the selected slot. Files stay in your browser.

File check · Shirt

Upload a shirt image to see size, format, empty-face and seam checks.

These checks run on your device. They help you catch layout problems, but they cannot promise Roblox will approve a file.

How to use the Roblox shirt tester

Most mistakes are visible in under a minute, if you look at the right places.

my-shirt.png
585 × 559 · PNG Saved
1
Upload your PNG
Drop a shirt, pants or T-Shirt file onto its slot, choose a file, or paste an image. The avatar updates the moment the file loads.
2
Turn the avatar
Drag to rotate, scroll to zoom, or use Front, Back, Left and Right to look at each side, including the sleeves.
File check
- 585 × 559 px
  Standard size.
- 2 empty faces
  Short sleeves are fine.
3
Read the file check
The panel lists size, format, empty faces, stray artwork and seam problems, each with a plain fix.
Your outfit
Edit in the Maker
4
Fix it or save the preview
Press Edit to move the image into the Maker without uploading it again, or press Save preview to keep a picture of the result.

What the Roblox clothing file check looks at

Five checks run on your device the moment a file loads. Each result says what it found and what to change.

Size and format

A shirt or pants file should be 585 × 559 px and a T-Shirt a square. A JPG works but has no transparency, so the check warns you.

Size and format

1024 × 1024 px
A shirt template is 585 × 559 px. Other sizes are stretched onto the avatar.

Empty faces

It looks at each torso and limb face and tells you which ones are blank or partly transparent, since Roblox shows the avatar’s skin or default colour there.

Tee shirt template with transparent lower sleeves

Short sleeves

Artwork in the gaps

Roblox only reads the labelled rectangles. Anything drawn between them is ignored, so the check counts those stray pixels.

Labelled shirt template showing the gaps between faces

Seam breaks

It compares the pixels where faces meet around the body and flags a hard colour jump, which would show as a line on the avatar.

Outfit preview: shirt, pants and T-Shirt together

Add a second and third file to see how they layer, because items that look fine alone can clash in an outfit.

Roblox draws pants first, then the shirt, then a T-Shirt on the chest. The tester layers your files in the same order, so a T-Shirt logo lands on top of the shirt and the shirt hem covers the top of the pants.

Work you made in the Maker is already here when you arrive from it, and the Edit button sends any file back there without a second upload.

Open the Shirt Maker

Browser preview or Roblox Studio?

Use both. They answer different questions.

Comparison of the RBXShirt tester and Roblox Studio
Question	This tester	Roblox Studio
Is my artwork on the right face?	Yes, instantly	Yes, after importing
Are there seam or size problems?	Flagged for you	You look for them
Exact Roblox lighting and body shapes?	No, R6 block avatar	Yes
Needs an account or install?	No	Yes