Build Your Prompt

Pick a framework, fill in the slots, copy the finished prompt to your AI of choice.

CRAFT Framework: Context, Role, Action, Format, Task. For longer, well-structured pieces — blog posts, launch announcements, brand storytelling.

Context (C)What background information does the AI need?

Role (R)Who should the AI act as?

Action (A)What should the AI do?

Format (F)How should the output be formatted?

Task (T)What is the specific task?

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About this tool

Prompt Foundry is a free, ad-supported builder that assembles structured prompts for any large language model — ChatGPT, Claude, Gemini, Llama, and the rest. Each tab above maps to a known prompt-engineering framework: CRAFT for longer structured pieces, RISE for multi-step assignments, CO-STAR for sensitive communication, CARE for strict output formats, and TAG for everyday one-off requests.

Pick the framework that matches your task, fill in each slot, and copy the prompt that builds in the preview panel. Everything happens locally in your browser — what you type is never sent to a server. If you're new to structured prompting, the How It Works page covers the underlying methodology and when to pick which framework.