# Realtime

Send and receive messages to connected clients.

Supabase provides a globally distributed [Realtime](https://github.com/supabase/realtime) service with the following features:

- [Broadcast](/docs/guides/realtime/broadcast): Send low-latency messages between clients. Perfect for real-time messaging, database changes, cursor tracking, game events, and custom notifications.
- [Presence](/docs/guides/realtime/presence): Track and synchronize user state across clients. Ideal for showing who's online, or active participants.
- [Postgres Changes](/docs/guides/realtime/postgres-changes): Listen to database changes in real-time.

## What can you build?

- **Chat applications** - Real-time messaging with typing indicators and online presence
- **Collaborative tools** - Document editing, whiteboards, and shared workspaces
- **Live dashboards** - Real-time data visualization and monitoring
- **Multiplayer games** - Synchronized game state and player interactions
- **Social features** - Live notifications, reactions, and user activity feeds

Check the [Getting Started](/docs/guides/realtime/getting_started) guide to get started.

## Examples

{[
{
name: 'Multiplayer.dev',
description: 'Showcase application displaying cursor movements and chat messages using Broadcast.',
href: 'https://multiplayer.dev',
},
{
name: 'Chat',
description: 'Supabase UI chat component using Broadcast to send message between users.',
href: 'https://supabase.com/ui/docs/nextjs/realtime-chat'
},
{
name: 'Avatar Stack',
description: 'Supabase UI avatar stack component using Presence to track connected users.',
href: 'https://supabase.com/ui/docs/nextjs/realtime-avatar-stack'
},
{
name: 'Realtime Cursor',
description: "Supabase UI realtime cursor component using Broadcast to share users' cursors to build collaborative applications.",
href: 'https://supabase.com/ui/docs/nextjs/realtime-cursor'
}
].map((x) => (

{x.description}

))}

## Resources

Find the source code and documentation in the Supabase GitHub repository.

{[
{
name: 'Supabase Realtime',
description: 'View the source code.',
href: 'https://github.com/supabase/realtime',
},
{
name: 'Realtime: Multiplayer Edition',
description: 'Read more about Supabase Realtime.',
href: 'https://supabase.com/blog/supabase-realtime-multiplayer-general-availability',
},
].map((x) => (

{x.description}

))}