PromptBase

PromptBase is an online marketplace that connects creators, AI enthusiasts, and professionals with a vast library of pre-designed and tested prompts for various generative AI models. The platform hosts over 270,000 prompts tailored for popular AI tools including Midjourney, ChatGPT, Gemini, Veo, and more. It serves as a central hub where users can browse, purchase, and sell prompt engineering assets, eliminating the need for trial-and-error experimentation when generating text, images, or videos. The marketplace is organized by categories such as image generation prompts (e.g., for Midjourney and Gemini), text-based prompts for conversational AI like ChatGPT, and video prompts for emerging models like Veo. Each listing includes a clear description of the prompt’s output style, parameters, and intended use case. For example, users can find prompts for monochrome portrait photography, cinematic fishing videos, luxury typography posters, or mixed-media crayon art. Prices are typically set by individual sellers, ranging from a few dollars to higher amounts for complex or niche prompts. PromptBase also offers a subscription service called PromptBase Select, which provides access to over 200,000 prompts at a flat monthly price. This model is designed for frequent users such as content creators, marketers, designers, and researchers who need a steady stream of reliable prompts without per-prompt costs. The platform boasts a 4.9 average rating from more than 39,000 reviews and is trusted by over 450,000 users, indicating strong community validation. A recent addition is the "Agent Skills" feature, which allows users to buy and sell skill.md files for AI agents.