Try the free prompt enhancer
Type anything below and watch PromptAI rewrite it into a structured prompt. Your first three enhancements are free.
as rough as you like
How PromptAI works
PromptAI takes the rough text you type and rewrites it into a structured, high-quality prompt in seconds. Under the hood it applies techniques like role assignment, chain-of-thought scaffolding, and constraint framing — the same methods prompt engineers use manually — so you get dramatically better responses from ChatGPT, Claude, Gemini, Cursor, and Claude Code without spending 20 minutes crafting the perfect prompt yourself.
Paste anything into the demo: a vague task, a half-formed question, a one-liner idea. PromptAI structures it with a clear role, relevant context, a precise task definition, and explicit constraints, then hands the finished prompt back to you ready to paste into any AI tool. If you love the results, a paid plan gives you unlimited enhancements plus the Chrome extension that works directly inside ChatGPT, Claude, Gemini, and more.
Instant results
Enhancement takes under three seconds — faster than writing a prompt refinement by hand.
No signup needed
Your first three enhancements are free with no account, no credit card, and no browser extension required.
Real model quality
The same GPT-4.1-mini backbone used by paying subscribers powers every demo enhancement — no watered-down version.
Example — before & after
write me a cover letter
You are an expert career coach and professional copywriter with 15 years of experience helping candidates land roles at top-tier companies. **Context:** I am applying for a [job title] position at [company name]. My background includes [key skills / years of experience]. The role requires [2–3 core requirements from the job posting]. **Task:** Write a compelling, 3-paragraph cover letter that: 1. Opens with a specific achievement or metric that demonstrates immediate value 2. Connects my experience directly to the company's stated priorities 3. Closes with a confident call-to-action that invites next steps **Constraints:** - Maximum 300 words - Avoid clichés like "I am passionate about…" or "I believe I am a great fit" - Use an active, first-person voice throughout - Do not repeat information verbatim from my résumé — synthesize and sell
Questions.
The PromptAI 360 demo is a free prompt enhancer you can use in the browser without an account. You type rough text, and PromptAI 360 rewrites it into a structured prompt with a role, context, task, output format, and constraints. It is the same enhancement engine paying subscribers use, not a reduced version.
plans start at about the price of one coffee a month
Take it with you: the AI prompt enhancer works in every AI tool, the ChatGPT prompt enhancer works inside ChatGPT, and the prompt enhancer for Claude Code lives in your terminal.