To create a custom T-shirt on Roblox, start by designing your shirt using an image editor like Microsoft Paint, GIMP, or Photoshop. Use tools such as the Paintbucket for coloring, the text tool for adding words, and the Brush tool for drawing or textures.
Next, download a T-shirt template from the Roblox Developer website or another source. Open this template in your image editor and resize it to 128×128 pixels if needed. This ensures your design fits perfectly.
After designing, save your creation as a PNG file. Log in to your Roblox account and navigate to the “Avatar Items” section. Filter for “Classic Shirts” and click “Upload” to select your PNG file. This will add your design to Roblox.
For extra flair, use online tools like PhotoP to add colors, images, or other details to your shirt. Resize and position elements to fit the shirt template exactly how you want.
Finally, save your completed design as a PNG file and upload it to Roblox. Your custom T-shirt will soon appear on your avatar. Note that a subscription is required to upload shirts, but you can upload T-shirt decals without one.