MetaPrompt — AI Prompt Engineer EN

MetaPrompt is a browser extension that acts as your personal Prompt Engineer. It automatically rewrites and structures your prompts before you send them to AI platforms like ChatGPT, Claude, or Gemini — so you always get dramatically better, more accurate responses with zero extra effort.

🚀 Unlock Full AI Power with a Free Gemini API Key

While MetaPrompt works instantly with built-in templates, we highly recommend connecting a free Gemini API Key for the best results.

Why connect an API Key?

100% Free: Google AI Studio provides a massive free tier for everyone.
4,000+ Daily Requests: You get approximately 4,000+ free responses every day across all Gemini models (Pro, Flash, etc.)—perfect for heavy daily usage.
Better Responses: Using the API allows for deep reasoning, resulting in much more professional LinkedIn DMs and master-class prompts.
How to set it up:

Get your free key at: aistudio.google.com/app/apikey
Open the MetaPrompt popup in your toolbar and paste the key.
Click "Save Key" and then "Check My Available Models".
💡 Pro Tip: If you ever see an "API Error," it just means you've hit the limit for one specific model. Simply open the popup and click "Check My Available Models" again—MetaPrompt will automatically find and switch you to the next best available free model so you can keep working without interruption!

Two Powerful Modes: 🚀 Optimizer Mode (For AI): Turn vague ideas ("make a snake game in python") into structured, expert-level prompts using proven techniques like Chain of Thought, Expert Persona, and Zero-Shot. ✨ Refiner Mode (For People): Acts as your professional ghostwriter on external sites like LinkedIn or Instagram. Highlight your rough notes, and MetaPrompt will instantly rewrite them into high-level business emails or casual messages.

Key Features:

6 Prompt Techniques: Automatically apply the best framework (Auto, Persona, Few-Shot, ReAct, etc.).
Dynamic Model Selection: Switch seamlessly between Gemini Flash, Pro, and Latest models.
Works Offline: Built-in smart templates enhance your prompts even without an API key.
Privacy First: Your API key is stored locally in your browser and never sent to third-party servers.
Keyboard Shortcut: Press Alt + Shift + P to enhance any prompt instantly.
Anywhere Support: Add custom websites to your allow-list to use the tool as a ghostwriter across the web.
Stop settling for mediocre AI responses. Let MetaPrompt engineer your prompts for you.