The one-click prompt improver
A prompt improver takes what you typed and makes it better before the AI sees it — adding the role, context, constraints, and output format that separate a usable answer from a rewrite. PromptAI does it in one click inside ChatGPT, Claude, and Gemini, and via a ⌘⇧P hotkey on Mac. Try it on this page, no login.
Free to try with no sign-up. The Chrome extension covers web AI chats; the Mac app covers Claude Code, Cursor, and any native text input.
This is the actual improver — type a rough prompt and watch it get rebuilt, free, no login.
What is an AI prompt improver?
An AI prompt improver rewrites your draft prompt into a stronger version of itself. It doesn't change what you're asking for — it changes how completely the request is specified. The improved prompt carries an explicit role for the model, the context behind the ask, ordered instructions, constraints like length and tone, and a defined output format. Those five pieces are what prompt-engineering guides keep repeating; the improver applies them automatically so you don't have to.
The reason this matters is that models fill every gap you leave with their default behavior. No format specified means the model picks one. No audience means generic register. No constraints means the safe, padded answer every AI produces when it's guessing. Improving a prompt is mostly gap-closing, and gap-closing is mechanical — which is why a tool does it well.
PromptAI's improver runs everywhere you prompt: a Chrome extension button inside ChatGPT, Claude, Gemini, Copilot, and Perplexity, and a global ⌘⇧P hotkey on macOS that improves highlighted text in Claude Code, Cursor, VS Code, or any native app. The widget on this page is the same engine with no install at all.
One improver, every place you prompt
Prompt quality advice is universal; the friction of applying it is per-tool. The improver removes the friction everywhere at once.
ChatGPT prompt improver
The button sits in the chatgpt.com composer. Rough ask in, structured prompt out, then send — the whole loop stays inside ChatGPT with no copy-paste to a separate tool.
Claude prompt improver
Works inside claude.ai chats, Projects, and Artifact requests. Anthropic's own console has a prompt improver for API system prompts; PromptAI covers the everyday side — the prompts you type into Claude chat all day.
Gemini and other web AIs
The same one-click flow inside gemini.google.com, Microsoft Copilot, and Perplexity. One install covers every web AI chat you use.
Desktop coding tools
The Mac app's ⌘⇧P hotkey improves highlighted text anywhere — Claude Code task briefs, Cursor Composer prompts, API system prompts in your editor. Improvement matters most where prompts drive agents.
Before and after: real AI prompts
Everyday ChatGPT ask
same idea, one click later
give me ideas for my newsletter
You are a content strategist for solo creators. Generate newsletter ideas for a weekly email read by 2,000 freelance designers — the goal is replies and shares, not clicks. Produce: 10 topic ideas grouped into three buckets (practical tutorials, industry takes, personal stories), each with a one-line hook and a difficulty score for how hard it is to write well. Constraints: no generic listicle topics, at least three ideas tied to current design-tool changes, under 250 words total.
Claude writing task
improve this paragraph
You are a line editor. Improve the paragraph I paste below for clarity and momentum while keeping my voice and every factual claim intact. Rules: cut hedging and filler, split any sentence over 25 words, keep technical terms as written, don't add new information. Output format: the improved paragraph first, then a two-line note on the most important change you made and why.
Coding brief — Claude Code
add rate limiting to the api
You are implementing middleware in a FastAPI backend. Task: add per-user rate limiting to all /api/* routes. Scope: a new middleware module plus registration in main.py only — do not modify route handlers. Requirements: sliding window, 60 requests/minute per authenticated user keyed by user id (fall back to IP for anonymous), 429 with a Retry-After header on limit, limits configurable via env vars. Definition of done: middleware active on all /api routes, unit-testable window logic isolated from FastAPI, existing tests still pass.
Set up in under a minute
Try it with zero install
Use the improver widget on this page — type a rough prompt, click once, judge the output yourself. No account needed.
Install where you work
Chrome extension for ChatGPT, Claude, Gemini, Copilot, and Perplexity; Mac app for Claude Code, Cursor, and native apps. One account covers both.
Improve, review, send
Click the button or press ⌘⇧P. The improved prompt replaces your draft in place — tweak anything, then send it to your AI.
Questions.
The one that fits your actual workflow: it should work inside every AI you use rather than as a separate site, improve in one click, and let you judge output quality before signing up. PromptAI covers ChatGPT, Claude, Gemini, Copilot, and Perplexity in the browser plus Claude Code, Cursor, and any Mac app via hotkey, and the widget on this page runs free with no login so you can evaluate it in thirty seconds.
Related reading
Try it on your next AI prompt
Free to try with no sign-up. The Chrome extension covers web AI chats; the Mac app covers Claude Code, Cursor, and any native text input.