Build guides

Building a chat & messaging app

A messaging app needs to feel instant, which means real-time delivery, not just refreshing a page.

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Chat apps are judged on speed and reliability: messages should appear instantly, show when someone is typing or has read them, and work well even on a spotty connection. This usually means building on real-time infrastructure rather than a simple request and response pattern.

Group conversations, media sharing, and search add real value but also real complexity, so it's worth being clear about which of these your first version truly needs.

Developers who’ve built chat & messaging apps

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Frequently asked questions

Does chat need to be built from scratch?

Not entirely. There are solid real-time tools a developer can build on, which saves time compared to building the delivery infrastructure yourself.

Do I need read receipts and typing indicators?

They're expected in many chat apps today, but they can also be added after a solid first version that just sends and receives messages reliably.

What about group chats?

Group chats add real complexity (who can see what, notifications for many people), so it's worth deciding early whether your first version needs them.