Free AI Prompt Generator is a local‑first, open‑source tool that lets you build better prompts every time. It uses a rule‑based wizard instead of a black‑box AI call, teaching you why each field matters. The simplest, most versatile framework defines who the AI should be, what it should do, and how it should format the answer, with clean labeled sections that work with any model.

The RTF framework (Role‑Task‑Format) provides the three most impactful levers in a minimal structure, and similar systems such as CO-STAR, TAG, and APE give additional levers for context, style, tone, and expectation. Adding each field reduces ambiguity, and you can enable AI refinement with your own API key.

Privacy is built in: the app runs 100% locally in your browser, preserving data while offering live previews, model‑specific formatting for Chat GPT, Claude, Gemini, and Midjourney, and optional client‑side refinement. It supports text, images, video, and code prompts, with tailored guidance for Gemini text, Midjourney images, Sora video, and GitHub Copilot coding.

This free, open‑source solution is praised by developers, marketers, creators, and researchers as the best prompt generator for daily productivity.