T-shirt design generator, print file included
Turn an idea, a trend or a design you like into an original T-shirt design — drawn by your own ChatGPT — and then into a print file ready to sell: upscaled, without its background, 4500 × 5400 px at 300 dpi.
New designs on the theme of one you like
- ChatGPT describes your design in plain words — its theme, its style, its words — so the new one keeps the idea without copying it
- 17 styles, with your own words for the theme and the mood
- Ask for 1 to 4 versions: each one is made in its own chat, the next as soon as a picture comes back
- A guard warns about brands, characters and famous names that must never go on a shirt
- Designs drawn on a magenta or green screen are cut out exactly
Ideas from what people search now
- Apparel trends: the searches rising this week or this month for T-shirts, hoodies, sweatshirts and graphic tees — with a ready, original design prompt for each idea
- Holidays with their dates, so your designs are ready before the season
- "T-shirt design" next to a trend starts a design in one click
From the picture to the print file
Press Continue after each step, and go on only when you like the result.
Upscale ×4
4 times bigger and sharper, on your computer — a 1200 px design becomes 4800 px.
Remove the background
The words and small shapes of the design stay; white spots closed inside the drawing are found for you.
Final PNG
4500 × 5400 px at 300 dpi, the size most print-on-demand sites ask for — or the design trimmed.
Then put it on mockups: see the T-shirt mockup generator.
Questions about T-shirt designs
Does GizmoBloom draw the designs itself?
Your own ChatGPT draws them: GizmoBloom writes the prompts, opens them in your browser and puts each picture back in its step. Free ChatGPT plans work, and several accounts can draw at the same time.
Are the designs original?
GizmoBloom asks for new designs that keep the theme and the style of an idea without copying it, and it warns about brands, characters and famous names. Always look at a design before you sell it.
What size is the print file?
4500 × 5400 px at 300 dpi, a PNG with a transparent background — the size most print-on-demand sites ask for. Or the design trimmed, with no empty edges.
Can I start from my own design?
Yes: start from your own picture in step 1. The similar-design step is optional.
Does it work for hoodies, mugs and tote bags?
The print file works for any product, and the mockups cover T-shirts, hoodies, sweatshirts, tank tops, long sleeves, tote bags and mugs.
Make your first T-shirt design free
Try every feature for 3 days, no card needed. Files made during the trial carry a small SAMPLE mark.
Also in GizmoBloom: the T-shirt mockup generator, the offline background remover and print-on-demand trends.