AI Prompt Builder and Generator

This free AI prompt generator turns a short form into a clear, structured prompt you can paste into ChatGPT, Claude, Gemini or any other AI assistant. Pick a template to start fast, then adjust it to your situation.

Private by design: it runs in your browser and nothing you type is sent to us.

Describe what you need

Start from a template

Who should the AI be? For example: senior editor, tax-savvy bookkeeper, patient teacher.

What should it do? One clear instruction, written as a full sentence.

Context The situation, the goal, anything the AI cannot guess.

Who is it for?

Tone

Material to work on (optional) Text the AI should use. Do not paste confidential or personal data into any AI tool unless your provider's terms allow it.

Rules One per line: what to include, what to avoid, limits.

Answer format

Length

More options Example answer, reliability switches

Example of a good answer (optional) Showing beats telling. Even a few lines helps a lot.

Reliability switches

Do not invent facts, figures or sources; say so when unsure Ask me clarifying questions first if something is missing State its assumptions up front Work step by step, then give a final answer Offer two alternative versions Check its own draft against the rules before answering

Your prompt

Your prompt will appear here as you fill in the form.

Prompt strength: 0 of 6

How to use the prompt builder

Pick a template that is close to your task, or start blank.
Replace anything in [square brackets] and fill in the context. Context is what turns a generic answer into a useful one.
Choose the answer format and length so you do not have to reformat the result.
Copy the prompt and paste it into your AI assistant. If the first answer is not right, change one thing in the form and try again.

What makes a prompt work

Every prompt this tool builds has the same parts, because each one removes a kind of guesswork for the model.

Role. Sets the point of view and vocabulary. "Senior editor" and "patient teacher" produce different answers to the same task.
Task. One clear instruction. If you need three things, say so as three numbered tasks.
Context and audience. The situation and who the answer is for. A model cannot see your business, so anything it needs to know has to be written down.
Rules. What to avoid and what limits apply. Specific rules ("under 120 words", "do not promise refunds") work better than general ones ("be professional").
Output format. Tells the model the shape of the answer: a table, steps, JSON, an email.
Example. Showing one good answer is often the single biggest improvement.

Prompt builder FAQ

Does it work with ChatGPT, Claude and Gemini?

Yes. The result is plain text with simple headings, so you can paste it into any AI assistant or API. The structure is not tied to any one product.

Is anything I type stored or sent to you?

No. The builder runs entirely in your browser. Your last form is remembered only on your own device, using your browser's local storage, so you can come back to it. The Clear button removes it.

Why does my prompt need context if the AI is smart?

Because it only knows what is in the conversation. Without context it fills the gaps with plausible guesses, which is where wrong or generic answers come from.

Should I paste customer or company data into a prompt?

Only if your AI provider's terms and your own data-protection rules allow it. When in doubt, remove names and identifying details first. This is a general caution, not legal advice.

Planning to automate the task you are writing prompts for? Try the automation payback calculator to see whether it is worth the effort.