The prompt enhancer for Chrome
One extension, every AI chat. PromptAI adds an enhance button inside ChatGPT, Claude, Gemini, Copilot, and Perplexity — one click turns a rough sentence into a structured prompt with role, context, constraints, and output format. Free to install, nothing to sign up for to try it.
Free to install from the Chrome Web Store. Works on Chrome, Edge, and Brave. First enhancement needs no account.
The exact engine inside the extension — try it here first, no install and no login required.
What does a prompt enhancer Chrome extension do?
A prompt enhancer Chrome extension rewrites what you type into an AI chat before you send it. Instead of copying your prompt to a separate tool, restructuring it, and pasting it back, the extension adds an enhance button directly inside the chat you're already using. Click it, and your rough sentence becomes a structured prompt — role, context, ordered instructions, constraints, and output format.
The reason to want this as an extension rather than a website is friction. Prompt quality advice is easy to find and tedious to apply; nobody reformats their prompt by hand thirty times a day. Putting the fix one click away, inside the input box itself, is what makes better prompting an actual habit rather than a thing you know you should do.
PromptAI works inside ChatGPT, Claude, Gemini, Microsoft Copilot, and Perplexity, plus any other site with a text input. One install covers all of them, and the same account extends to the Mac desktop app for Claude Code, Cursor, and native apps.
One install, five AI chats
The extension detects the input box on each supported site and adds the same one-click enhance flow everywhere.
ChatGPT
The enhance button sits with the chatgpt.com composer. Works with GPT-5.2 and GPT-5.2 Thinking chats, custom GPTs, and long conversations — enhance before sending, every time.
Claude
Inside claude.ai chats, Projects, and Artifact requests. Claude follows format constraints unusually strictly, so enhanced prompts pay off most here.
Gemini
On gemini.google.com, including Gems and Deep Research briefs — where a structured brief decides whether a ten-minute research run answers the right question.
Copilot and Perplexity
Microsoft Copilot and Perplexity both ground answers in live search, so prompt structure steers which sources get retrieved — not just how the answer reads.
Before and after: real Chrome prompts
Everyday question — ChatGPT
same idea, one click later
help me plan a trip to japan
You are a travel planner who specializes in first-time Japan trips. Plan a 10-day itinerary for two adults in late October, flying into Tokyo and out of Osaka, mid-range budget ($150-200/night hotels), interests: food, temples, one day of hiking, no theme parks. Output format: a day-by-day table with city, morning/afternoon/evening blocks, and estimated daily cost, followed by a 5-item logistics checklist (rail pass, reservations needed in advance). Constraints: max two hotel changes, include one off-the-beaten-path day.
Work draft — Claude
write a job posting for a senior backend engineer
You are a hiring manager writing a job posting that filters well. Write a posting for a Senior Backend Engineer (Python/FastAPI/Postgres) at a 10-person B2B SaaS startup, remote-first US time zones. Structure: a 2-sentence hook about the actual work, responsibilities as 5 bullets tied to real projects, requirements split into must-have (max 4) and nice-to-have (max 3), salary range $170-200k stated plainly, and a 3-step hiring process. Tone: direct, zero corporate filler. Constraints: no 'rockstar/ninja' language, no unmeasurable requirements like 'passion'.
Research — Perplexity
is it worth switching to a heat pump
You are an energy analyst advising a homeowner. Evaluate whether replacing a 12-year-old gas furnace with a heat pump makes financial sense for a 2,000 sq ft home in a cold climate (Minnesota). Cover: upfront cost ranges with current federal/state incentives, realistic efficiency in sub-zero temperatures, annual operating cost versus gas at current prices, and payback period scenarios. Output format: a summary verdict up top, then a cost table, then a 'when it does NOT make sense' section. Prioritize sources from the last 2 years.
Set up in under a minute
Install from the Web Store
Add PromptAI to Chrome — it works on Chrome, Edge, and Brave. No account needed to install.
Open any supported AI chat
ChatGPT, Claude, Gemini, Copilot, or Perplexity. The enhance button appears with the input box automatically.
Type, click, send
Write your request naturally, click enhance, review the structured prompt, and send it. Under a second per enhancement.
Questions.
The one you'll actually use daily: it should work inside every AI chat you use (not just ChatGPT), enhance in one click without copy-paste, and be free to try. PromptAI covers ChatGPT, Claude, Gemini, Copilot, and Perplexity with one install, enhances in under a second, and the first enhancement requires no account — so you can judge the output quality yourself before signing up.
Related reading
Try it on your next Chrome prompt
Free to install from the Chrome Web Store. Works on Chrome, Edge, and Brave. First enhancement needs no account.