I Built a Product Listing Writer That Costs $0 Per Listing to Run

Description and use

ListCraft generates SEO‑optimized titles, five benefit‑led bullets, full descriptions, and backend keywords for Amazon, Flipkart, Etsy, and Shopify, all locally with zero per‑listing cost.

Problem

Marketplace sellers spend hours rewriting listings and often pay copywriters when backlogs grow, while existing tools rely on paid APIs that increase marginal costs and expose sensitive catalog data.

Outcome

ListCraft produces SEO‑optimized titles, five benefit‑led bullets, full descriptions, and backend keywords for Amazon, Flipkart, Etsy, and Shopify, all generated locally with zero per‑listing cost and no data leaving the seller’s laptop.

Workflow

• Install Ollama and pull gemma2:2b
• Clone the ListCraft repo and run ./run.sh
• Open the UI, paste product details, select marketplace, and hit generate
• Export the listing as Markdown or copy to clipboard

Evidence

Listing‑writer tools exist, but every one I looked at is a thin wrapper over a paid API.

Source

After the one‑time model download, everything happens locally. Unplug your router mid‑generation and it keeps working.

Source

The pricing math is the point. Charge per listing or a small monthly fee, and because the model runs locally, there's no per‑generation bill eating into it.

Source