PromptBase Curated prompt directory and marketplace for Midjourney, ChatGPT, DALL-E, and Stable Diffusion.
Promptfoo Open-source CLI and testing library for evaluating LLM prompt quality and security guardrails.
Prompt Master Universal prompt engineering engine and Claude skill that generates high-precision, token-efficient prompts for coding agents, LLMs, and image generators.
FlowGPT Interactive prompt community and visual playground for conversational AI and character workflows.