AI Prompt Generator — Structured Prompts for Any Model
Fill a few fields, get a professional structured prompt for image models (Midjourney, Stable Diffusion, Flux, DALL-E) or chat models (ChatGPT, Claude, Gemini). Copy, tweak, done — free and unlimited.
Quick answer: Free AI prompt generator: build detailed, structured prompts for Midjourney, Stable Diffusion, Flux, DALL-E, ChatGPT, Claude and Gemini in one click. No sign-up.
How to use
- Choose the model type — image (Midjourney, Stable Diffusion, Flux, DALL-E) or chat (ChatGPT, Claude, Gemini).
- Describe your idea — subject/topic, style, mood and any must-haves; the builder adds the professional structure around it.
- Copy & generate — paste the prompt into your AI tool of choice. Regenerate for variations until it's right.
About this tool
Good outputs start with good prompts. This generator turns a rough idea into a structured prompt using the patterns prompt engineers actually use: role, task, context, constraints and output format for chat models, or subject, style, lighting, camera and quality tags for image models. Pick your target model and the template adapts — Midjourney gets parameter flags (--ar, --stylize), Stable Diffusion gets weighted tags, ChatGPT gets a role-and-rules wrapper. Everything runs in your browser and nothing is stored.