Relay Messenger

Quick Facts

Tech Stack

Backend

Firebase

Database

Firebase

Frontend

JavaScriptBootstrap

Infrastructure

Vercel

About the Business

A real-time, end-to-end encrypted messaging application built with Firebase, featuring user authentication, presence tracking, and secure communication. ## 🌟 Features ### Core Functionality - **User Authentication**: Email/password authentication with Firebase Auth - **Real-time Messaging**: Instant message delivery using Firebase Realtime Database - **End-to-End Encryption**: AES-256-GCM encryption for all messages - **User Search**: Search users by username or email with privacy controls - **Online Presence**: Real-time online/offline status indicators - **Unread Message Counts**: Track unread messages per conversation - **Message Notifications**: In-app and browser push notifications - **Conversation Management**: Mute conversations, delete messages - **Profile Pictures**: Upload and display custom profile pictures with automatic compression - **Photo Sharing**: Send encrypted photos in conversations with thumbnail previews ### Media & Monetization - **Encrypted Photo Sharing**: Send/receive photos with end-to-end encryption - **Profile Picture Upload**: Custom avatars with automatic compression (400x400, < 100KB) - **Donation System**: Support the platform via Stripe/PayPal (one-time or recurring) - **Donor Recognition**: Special badges for supporters ($100+ donations) ### Privacy & Security - **Search Privacy Controls**: Choose who can find you (anyone/exact match/not searchable) - **Advanced Encryption**: AES-256-GCM for messages and photos - **Master Key Backup**: Secure backup interface with multiple export options - **Firebase Storage Security**: Encrypted file storage with access controls ### Advanced Features - **Multi-Tab Synchronization**: Seamless experience across multiple browser tabs - **Offline Support**: Queue messages when offline, auto-send when reconnected - **Network Status Monitoring**: Visual connection status indicators - **Rate Limiting**: Prevent spam with intelligent rate limiting - **Input Validation**: Comprehensive XSS protection and input sanitization - **Error Handling**: User-friendly error messages and logging - **Responsive Design**: Works on desktop, tablet, and mobile devices - **PWA Support**: Install as a Progressive Web App ### Enhanced UX - **Modern Settings Page**: Tabbed interface with Account, Privacy, Notifications, Appearance, Security sections - **Polished Profile UI**: Edit mode, status messages, larger avatars - **Improved Chat View**: Better message bubbles, time indicators, hover actions, smooth scrolling - **Enhanced Header**: Integrated search, donation button, user menu dropdown - **Master Key Modal**: Security-focused interface with reveal/copy/download/print options ## 🛠️ Technology Stack ### Frontend - **HTML5/CSS3**: Modern semantic markup and styling - **JavaScript (ES6+)**: Vanilla JavaScript, no frameworks - **Bootstrap 5.3**: Responsive UI components - **Font Awesome 6.5**: Icon library ### Backend & Services - **Firebase Authentication**: User management and authentication - **Firebase Realtime Database**: Real-time data synchronization - **Firebase Storage**: Encrypted file storage for photos and profile pictures - **Firebase Hosting**: Fast and secure web hosting - **Firebase Cloud Functions**: Serverless backend logic - **flutterwave**: Payment processing for donations - **Vercel**: Serverless functions for link previews and donation endpoints

Business Model

Revenue potential (can recoup in 6-12 months with donations alone)

Competitive Landscape

signal, whatsapp

Reason for Selling

Moving to a different project and want this to go to someone who will maximize its potential. I've spent 6+ months building this platform with best practices in mind.