PromptDen

PromptDen is a community site for finding, sharing and selling AI prompts. Its libraries are split by type: chat prompts for ChatGPT, Gemini and Claude, image prompts for tools such as Midjourney and Stable Diffusion, and video prompts for Midjourney and Veo. Each listing shows the target model and engagement figures, and prompts are grouped by topic such as marketing, SEO and DevOps. A marketplace lets members buy and sell prompts and images, and there is a blog, an upload flow for submitting prompts, an affiliate program and a developer API. Members can join with an account to collect and contribute prompts. The company also makes PromptForge, a browser extension that loads inside AI platforms including ChatGPT, Google Gemini, Midjourney and Claude. It lets a user run community or private prompts with one click, organize them in collections, use prompt variables and prompt extenders, search with advanced filters, and adjust the language, tone and writing style of a prompt before it is sent. The extension is offered as a free install on its product page. PromptDen is aimed at people who work with generative AI and want inspiration or reusable starting points, and at creators who want to sell their prompts. The site does not publish a pricing page, and prices for marketplace items are set by sellers.