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Real-time Chat Platform

A responsive real-time chat platform with sub-100ms delivery for 50+ concurrent users.

GitHubLive demo

Tech stack

  • Next.js
  • Supabase
  • PostgreSQL
  • Tailwind CSS

The problem

Real-time chat has to keep many clients in sync with minimal latency while staying responsive across devices and handling sessions securely.

The solution

A full-stack chat platform using Supabase WebSocket subscriptions for instant updates over PostgreSQL, with secure user sessions and a clean, responsive Tailwind UI.

Architecture

Next.js client → Supabase realtime (WebSocket subscriptions) → PostgreSQL. Secure sessions and optimistic updates keep all clients coordinated.

Highlights

  • 50+ concurrent users with instant, coordinated updates
  • Sub-100ms latency; ~40% lower message-delivery delay
  • Responsive across 3+ device types