Realtime ChatA conversation, built in real time.

I designed and built the complete system — interface, real-time messaging, presence, authentication, access control and deployment.

The same conversation in light and dark mode — your messages on the right, everyone else’s on the left.

Built to live inside other products

The chat is designed as a flexible communication component rather than a standalone social network.

It can support conversations between buyers and sellers, customers and providers, community members, collaborators or any other participants inside a digital product.

The context changes. The core needs remain the same: identity, presence, instant delivery and controlled access.

What I built

Realtime messaging

Messages appear instantly without reloading.

Presence

Participants can see who is currently online.

Passwordless access

Users sign in through a one-time email code.

Database-level security

Authorship, timestamps and access rules are enforced through Postgres RLS.

Automatic retention

Messages can expire automatically based on product requirements.

Small signals make a conversation feel alive: a typing indicator, delivery confirmation and a first message that invites people to write.

Try it

The public demo runs entirely in the browser, so nothing is stored.

The complete implementation adds authenticated users, persistent real-time communication, database access rules and automated message retention.

Stack

Front-end

React · Vite

Back-end

Supabase · Postgres · Realtime

Infrastructure

Hetzner · Caddy · Self-hosted