How to Build a Print-On-Demand T-Shirt Store with AI In 2025 (Step By Step)

About this video

RJ Martinez, who says he has sold over $400,000 in royalties through print on demand on Amazon Merch, walks through building a T-shirt store from scratch with AI, WordPress/WooCommerce and Hostinger. For designs he recommends Midjourney for detailed artwork, DALL-E-3 for idea-to-image, Canva AI for edits, and Ideogram AI for stylized text/slogan shirts, with files at about 4,500 by 5,400 pixels at 300 DPI. He buys Hostinger’s Business plan, claims a free domain on a plan longer than 12 months (using a .store domain, Love Shirt Designs), uses coupon code RJMartinez for an extra 10% off, and lets Hostinger’s AI build the WordPress site. He installs WooCommerce and a print-provider plugin — showing Printful, Gelato and Printify, and choosing Printful for the demo — connects the domain (noting it can take up to 24 hours), and adds a Bella Canvas 3001 unisex shirt with an Ideogram design, upscaled and background-removed, priced in the example at $22, noting larger sizes can command a premium. He then uses Hostinger’s AI Content Creator to generate SEO product descriptions and tags, and outlines promotion: AI social content, blog/SEO posts, a free downloadable lead magnet to build an email list and newsletter, discounts/giveaways, optional paid ads to the freebie, and consistent posting on TikTok, Facebook and other platforms where organic reach is strongest.

Key takeaways

• Use different AI tools for different jobs: Midjourney for detailed art, Ideogram for text/slogan designs, DALL-E-3 for concepts, and Canva AI for edits, at 4,500 x 5,400 px / 300 DPI
• Build on Hostinger + WordPress + WooCommerce with a print-provider plugin such as Printful, Gelato or Printify, and test the provider yourself before relying on it
• Warn customers and stay on top of service during Q4/holidays, when print-and-ship delays are likely
• Use Hostinger’s AI Content Creator for product descriptions and tags to help listings rank in search
• Traffic is the hard part: post consistently, offer a free download to collect emails, and layer in promos, giveaways and small-budget ads

Episode details: published June 11, 2025 · 25:15 long. Summary written by Self Growth Videos from the episode itself. Business results and any income figures mentioned are RJ Martinez’s own claims, shared for education — they are not typical or guaranteed.

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