Is the prompt builder free?

Yes. There is no sign-up and no limit. It runs entirely in your browser, so nothing you type is sent to a server.

Does it work with ChatGPT, Claude and Gemini?

Yes. The prompt is plain text, so it works in any AI assistant, including ChatGPT, Claude, Gemini and Copilot.

What makes a good prompt?

Four things: the background, a clear task, details such as audience, tone and length, and the format you want back. The free guide on using AI in daily life covers each one with examples.

Can I paste personal or confidential information?

Keep passwords, ID numbers and financial details out of prompts, and check your workplace's rules before pasting company information into any AI tool.

Free tool

AI Prompt Builder

Answer a few questions and get a clear, complete prompt for ChatGPT, Claude or Gemini. Free, no sign-up, and nothing you type leaves your browser.

Start from

What do you want?

One or two sentences. Replace anything in [brackets].

Background

What the assistant cannot know: the situation, the text to work on, your constraints.

Who is it for?

Tone

Length

Format

Answer language

Write in your language and get the answer in another one.

Extras

Your prompt

Background:
[Paste the email you received]

Task:
Write a reply to the email below. I want to [agree / say no politely / ask for more time].

Use a friendly tone.
Keep it under 150 words.
Write it as a ready-to-send email with a subject line.

4 of 4 parts · a complete prompt

Backgrounddone
Taskdone
Detailsdone
Formatdone

Paste it into ChatGPT, Claude, Gemini or any assistant. Nothing you type here leaves your browser. Keep passwords and ID numbers out of prompts; see staying safe with AI.

Why structured prompts work

AI assistants fill gaps with guesses. A prompt that states the background, the task, the audience and the format leaves fewer gaps, so the first answer is closer to what you need and you spend less time rewriting it.

How to use the builder

Pick a starting point or start blank. Describe the task in a sentence or two, add the background the assistant cannot know, then set the tone, length and format. The prompt updates as you type. Copy it into your assistant, then refine the answer with follow-ups such as "shorter" or "more formal".

Getting the answer in another language

Choose an answer language and the prompt asks for the reply in that language, so you can write in English and get the answer in French, Arabic, Urdu or Spanish. For anything important, such as a contract or a public post, have a native speaker check the result.

Frequently asked

Is the prompt builder free?: Yes. There is no sign-up and no limit. It runs entirely in your browser, so nothing you type is sent to a server.
Does it work with ChatGPT, Claude and Gemini?: Yes. The prompt is plain text, so it works in any AI assistant, including ChatGPT, Claude, Gemini and Copilot.
What makes a good prompt?: Four things: the background, a clear task, details such as audience, tone and length, and the format you want back. The free guide on using AI in daily life covers each one with examples.
Can I paste personal or confidential information?: Keep passwords, ID numbers and financial details out of prompts, and check your workplace's rules before pasting company information into any AI tool.

Learn the habits behind good prompts

The free guide covers how to ask, twenty-one everyday prompts, and what never to paste into an AI tool.

Read the free guide Book a free call