MessAI

Transform your Facebook Messenger conversations with AI-powered responses through this powerful Chrome extension that helps you craft perfect messages using artificial intelligence. Simply type prompt followed by your request and let AI generate professional, friendly, or creative responses instantly.

This extension supports multiple AI models including Gemini which is completely free, GPT, and Claude, giving you flexibility in choosing your preferred AI assistant. You can select from various custom tones such as Default, Honest, Friendly, Weird, Nerd, and Cynic, or even create your own personalized tone to match your communication style.

The extension includes smart templates that allow you to save and reuse frequently used messages, saving you time on repetitive conversations. History tracking lets you access your previous prompts and responses, making it easy to reference or reuse past interactions.

Privacy is a core principle of this extension. All data is stored locally on your device with no external servers involved. Your API keys are stored securely on your machine, and the extension collects no data whatsoever.

Using the extension is straightforward. After installation, obtain a free Gemini API key from Google AI Studio, open Facebook Messenger, and type prompt followed by your message request, such as write a thank you message. Press Enter and the AI instantly generates your response.

This tool is perfect for crafting professional business messages, writing friendly casual replies, overcoming writer's block, helping non-native speakers improve their English communication, and anyone who wants to communicate more effectively and efficiently.