To make a shirt on Roblox for free, start by creating a square image. The recommended size is 512×512 pixels, but you can go up to 1024×1024 for more detail. This image will be the design of your shirt.
Next, log in to your Roblox account and go to the “Create” tab. Click on “My Creations” and then select “Shirts” or “T-shirts” if you prefer a free option. Upload your square image by choosing it from your computer.
After uploading, configure the shirt by giving it a name and filling in other details. Save the shirt to your Roblox account. Make sure all the information is correct before saving.
Finally, test the shirt by adding it to your avatar. You can view it from different angles to ensure it looks as you want. By following these steps, you can create and upload a shirt on Roblox without spending any Robux.