Smart Reply, Enhance & Translate is a full-stack AI tool suite built to boost productivity for anyone who works with text. Whether you're a support agent handling repetitive messages, a freelancer drafting professional emails, or someone who needs quick translations, this project provides a seamless experience across multiple platforms.

The suite consists of three client interfaces, a browser extension (Chrome/Firefox), a React web application, and a Flutter mobile app, all powered by a shared Node.js backend that communicates with state-of-the-art LLMs via OpenRouter.

Key Features

• 4 AI suggestions per request across all three modes (Reply, Enhance, Translate)

• 6 response formats — Professional, Friendly, Casual, Formal, Flirty, Romantic — with tooltip descriptions

• Multi-language translation — English, Spanish, French, German, Chinese, Arabic, Bengali, and more

• Multiple free LLM models — automatically selects the best model per operation type

• LLM-agnostic — compatible with any OpenRouter-supported model (free or paid)

• Custom API key support — bring your own key for full privacy and control

• SHA256-based intelligent caching — prevents duplicate API calls, 5-minute TTL

• Docker support — spin up the backend with a single command

• Browser Extension (Chrome/Firefox) — insert text directly into any field, keyboard shortcut Ctrl+Shift+T, context menu integration, auto-detect selected text

• Web App — animated UI with Framer Motion, auto-resizing textarea, keyboard shortcuts (Ctrl/Cmd + Enter), responsive and accessible

• Mobile App (Flutter) — native Android support, optimized for on-the-go usage

Smart Reply is open source, allowing you to customize and deploy it according to your needs. Enhance your productivity and communication with this AI-powered assistant.