Hi Product Hunt — I'm Jason, a one-person e-commerce company in London. ProductJSON Studio exists because AI image models kept redrawing my own product. Same brief, a different lamp every re-roll — my Aetheo Aura table lamp would change its shape, its label, its proportions between shots. Plain-text prompts guess, and they guess differently each time. A JSON prompt fixes that. It's a structured blueprint — product, scene, lighting, camera. Change one field and everything else stays anchored, so the product survives the re-roll. You can browse over three thousand example prompts and the whole guide with no key at all. Convert any idea into JSON, lock a saved product profile so its shape and label stay identical, and generate with Nano Banana 2/Pro or GPT Image 2, with A/B compare and batch. When a shot is right, the listings tool builds the rest — a compliance-first Amazon main image first, then the secondary set (lifestyle, exploded views, feature callouts, scale, box contents), or a brand-led PDP gallery for Shopify. What it honestly is not: a hosted API. There's no signup and no card, and I'm not holding your keys — you bring a Gemini and/or OpenAI key, and it stays client-side in your browser. The studio is free forever. For people who'd rather own the thing, there's a full source licence. I built the model-routing table by running a four-category, thirty-two-generation eval of Nano Banana Pro against GPT Image 2 (Beauty and Personal Care leaned GPT Image 2 for texture and label fidelity; general product leaned Nano Banana Pro). It's the tool I use daily for my own Amazon and Shopify listings. Happy to answer anything about JSON prompting, the model eval, or running a product business solo.

Maker

📌

3mo ago

Tried it with a Shopify listing idea and the consistency between re-rolls actually held, which is rarer than it should be. Editing one field and watching the rest stay grounded feels like the part most generators miss.

The way each generation keeps the product locked in place across angles is genuinely clever, makes prototyping way less painful than juggling prompt tweaks.

ProductJSON Studio

Consistent AI product images for e-commerce. Free, BYOK.

Consistent AI product images for e-commerce. Free, BYOK.