Prompt a Tool – free AI prompt generator for your app idea

Prompt a Tool is a free web app that turns your app idea into tailored development prompts, user roles, AI agents and skills. Answer a few AI-generated questions and get ready-to-use prompts for your backend and frontend.

Who is it for?

Anyone who wants to build a digital product with the help of AI, with or without a technical background.

• Founders and first-time builders: Turn a rough idea into a clear plan and know what to ask an AI assistant or a developer.
• Developers: Skip the blank page. Get a structured starting point for roles, architecture and prompts, then adapt it.
• Students and learners: Learn how real apps are broken down into users, features, backend and frontend.
• Teams, freelancers and agencies: Quickly align on scope and share the plan as Markdown, JSON or AGENTS.md.

How it works

1. Describe your app idea in plain language.
2. Answer a few AI-generated follow-up questions.
3. Get user roles, AI agents, backend prompts and frontend prompts tailored to your project.

Frequently asked questions

What is Prompt a Tool?

Prompt a Tool is a free web app that turns an app idea into a complete set of user roles, AI agents, backend prompts and frontend prompts, so you can start building with an AI coding assistant faster.

How does Prompt a Tool work?

You describe your app idea in plain language, answer a few AI-generated follow-up questions, and receive tailored prompts for your project. You can then export them as Markdown, JSON or an AGENTS.md file.

Who is Prompt a Tool for?

Anyone who wants to build a digital product with the help of AI, with or without a technical background: founders and first-time builders, developers, students, and teams, freelancers and agencies.

Is Prompt a Tool free?

Yes. Prompt a Tool is free to use and does not require an account to generate prompts. Signing in lets you save and revisit your prompts.

Which languages does Prompt a Tool support?

English, French, Arabic (right-to-left), Swahili, Hausa, Yoruba, Amharic, Oromo, Igbo and Luganda.

Does Prompt a Tool work offline?

Yes. It is a Progressive Web App that can be installed and opened offline. Generating new prompts needs a connection because the AI runs on the server.