GizmoBloom

T-shirt mockup generator for print on demand

Put your design on T-shirts, hoodies, sweatshirts, tote bags and mugs — on models, in real places or as flat lays — as many mockups as you want at once. A Windows app that runs on your own computer, with no fee per mockup.

Realistic mockups, many at once Works offline

  • The print area is found for you — center chest, full front or left chest — also on people; drag its corners to adjust
  • The design follows the fabric's folds and shadows, with a matte, glossy or vintage print look
  • One design on every mockup you choose: black, white, heather gray, navy, sand… on men and women
  • Saved as JPG files or one ZIP, ready for your listings
  • No watermark on your plan, no upload and no fee per mockup
Six T-shirt mockups made by GizmoBloom from one sunset mountains design: black, heather gray, sand, navy and white T-shirts on models

Mockup photos that are yours

Mockup photos found on the internet often come with licenses that limit what you can do with them. GizmoBloom works with your own mockup library:

  • Your own photos of blank garments
  • Or blank-garment photos made with your own ChatGPT — GizmoBloom writes the prompts: men and women, flat lays and real places
  • Match my product: mockup photos of the blank you sell through Printful or Printify, in the same cut and the same colors
  • T-shirts, hoodies, sweatshirts, tank tops, long sleeves, tote bags and mugs

From one design to files ready to sell

The Apparel studio takes your design through 6 steps. Click a step to see it, and go on only when you like it.

GizmoBloom's Apparel studio: your design, similar design, upscale, remove background, the final PNG at 4500 × 5400 px and 300 dpi, then mockups

Your design

Your own picture — or an idea from Trends, drawn by your ChatGPT.

Similar designs

Optional: new, original designs on the theme of one you like, in 17 styles — 1 to 4 versions, each in its own chat.

Upscale

4× bigger and sharper, on your computer: blur and noise are cleaned while it enlarges.

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.

Mockups

Your design on as many mockups as you want, saved as JPG files or one ZIP.

What to design next

  • 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
  • 74 ready themes, and holidays with their dates, so your designs are ready before the season
  • A guard that warns about brands, characters and famous names that must never go on a shirt

More about Trends →

Questions about mockups

Do I need Photoshop?

No. GizmoBloom puts your design on the mockup photo by itself — following the folds and shadows of the fabric — and makes many mockups at once. No templates to edit by hand.

Are the mockups watermarked?

Not on a plan. During the 3-day free trial, the files carry a small SAMPLE mark.

What size should a T-shirt design be?

Most print-on-demand sites ask for 4500 × 5400 pixels at 300 dpi, on a transparent background. GizmoBloom's final PNG is that file: your design made bigger and sharper, without its background.

Can I use my own mockup photos?

Yes: add your photos of blank garments to the mockup library. GizmoBloom finds the print area, and you can drag its corners to adjust it.

Does it work with Printful, Printify, Etsy or Amazon?

GizmoBloom makes the files — the print PNG and the mockups — and you upload them yourself: it never logs in to your shops. "Match my product" makes mockup photos of the Printful or Printify blank you sell, in its colors.

Does it work offline?

Yes: the mockups, the upscaler and the background remover run on your computer, without internet. New designs and new mockup photos are made with your ChatGPT.

Make your first mockups free

Try every feature for 3 days, no card needed. Files made during the trial carry a small SAMPLE mark.

Making books too? See the KDP coloring book maker.