Use Cases
Produce print-ready designs with transparent backgrounds — built for print-on-demand.
Short answer
For AI t-shirt design use Ideogram or Recraft and add "isolated on plain white background, centred, flat vector, no mockup" to the prompt. For printing, the design needs a transparent background (PNG) at 4500×5400 pixels or more. Limiting the colour count lowers print cost and sharpens the result.
T-shirt design is one of the most directly monetisable uses of AI image generation, because print-on-demand platforms handle stock, printing and shipping; only the design is left to you.
But most people who fail here make the same mistake: they generate a nice image and upload it as-is. T-shirt artwork has different technical requirements from an image that looks good on screen, and when those are not met the print is rejected or the result looks bad.
This page walks the path from generation to print, with the technical requirements attached.
Add "isolated on plain white background, centred, no mockup" to the prompt. If you generate an image of a model wearing a shirt you cannot extract the design; you have to generate the artwork on its own.
Write "limited palette, three colours maximum" in the prompt. In screen printing each colour costs separately, and fewer colours also make the design more legible from a distance.
Strip the white background with a background-removal tool and save as a transparent PNG, then upscale to at least 4500×5400 pixels. Print facilities usually require that size.
Most print-on-demand platforms want three things: a PNG with a transparent background, at least 4500×5400 pixels, and 300 DPI. That size covers a full-front print on an adult shirt.
A transparent background is mandatory because the shirt colour has to show through around the artwork. Upload it with a white background and a white box appears around the design on a black shirt.
Colour profile matters too: screens are RGB, printing is CMYK. Bright neon colours look vivid on screen and come out dull in print. Avoiding heavily saturated colours at the prompt stage prevents disappointment later.
Selling t-shirts is where the copyright risk of AI imagery becomes most concrete, because you are selling the product commercially and platforms act fast on infringement notices.
The most common problem is the model unknowingly reproducing a recognisable character, brand logo or copyrighted artwork. Even when no brand or character name appears in the prompt, a style description can push the model in that direction.
A practical precaution: run the design through a reverse image search before listing it. If something similar comes up, change the design. Also, do not name living artists in prompts — describe the style instead of naming the person.
If the tool's terms allow commercial use, yes — Ideogram, Recraft, Leonardo and Midjourney's paid tiers all do. But make sure the design does not reproduce a recognisable character, brand or copyrighted work; platforms remove listings quickly on an infringement notice.
A full-front print on an adult shirt needs at least 4500×5400 pixels at 300 DPI. AI tools usually generate below that, so an upscaling step is mandatory. The file must be a PNG with a transparent background.
Because the word "t-shirt" is in the prompt, the model produces a photo of a shirt. If you want the artwork itself, add "isolated on plain white background, centred, no mockup, no shirt" and describe the design directly instead of saying "t-shirt design".
Prompts are written in English because most tools give markedly better results with English prompts.
vintage t-shirt graphic, a mountain range inside a circular badge, distressed texture, three colours cream rust and navy, flat illustration, isolated on plain white background, centred, no mockup, no shirt
Works well in these tools: ideogram, recraft, leonardo-ai
Note: The phrases "no mockup, no shirt" are critical: without them you get an image of a shirt on a model and the artwork is unusable.
bold typographic t-shirt design, the words "KEEP GOING" in condensed grotesque letters, single colour black, subtle halftone texture, isolated on white background, centred composition, no mockup
Works well in these tools: ideogram, recraft, leonardo-ai
Note: Single-colour typographic designs are both the cheapest to print and the best-selling t-shirt type.
For logos, posters and typographic design: the one tool that gets the lettering right.
Generates logos, icons and illustrations directly as scalable vectors.
Free credits that renew daily, a large model library and dedicated tooling for game assets.
The subscription generator that delivers the most consistent artistic and aesthetic results.