Learn some Jazz

Jazz is a toolkit for building backendless apps. You get data without needing a database — plus auth, permissions, files and multiplayer without needing a backend. Jazz lets you do everything right from the frontend and you'll ship better apps, faster.

Instead of wrestling with databases, APIs, and server infrastructure, you work with CoValues ("collaborative values") — your new cloud-synced building blocks that feel like local state but automatically sync across all devices and users in real-time.

Note: We just released Jazz 0.14.0 with a bunch of breaking changes and are still cleaning the docs up - see the upgrade guide for details.

#Quickstart

You can use create-jazz-app to create a new Jazz project from one of our starter templates or example apps:

npx create-jazz-app@latest --api-key you@example.com

#Why Jazz is different

Most apps rebuild the same thing: shared state that syncs between users and devices. Jazz starts from that shared state, giving you:

• No backend required — Focus on building features, not infrastructure
• Real-time sync — Changes appear everywhere immediately
• Multiplayer by default — Collaboration just works
• Local-first — Your app works offline and feels instant

Think Figma, Notion, or Linear — but you don't need years to build a custom stack.

#How it works

1. Define your data with CoValues schemas
2. Connect to sync infrastructure (Jazz Cloud or self-hosted)
3. Create and edit CoValues like normal objects
4. Get automatic sync and persistence across all devices and users

Your UI updates instantly on every change, everywhere. It's like having reactive local state that happens to be shared with the world.

#Ready to see Jazz in action?

Have a look at our example apps for inspiration and to see what's possible with Jazz. From real-time chat and collaborative editors to file sharing and social features — these are just the beginning of what you can build.

#Core concepts

Learn how to structure your data using collaborative values — the building blocks that make Jazz apps work.

#Sync and storage

Sync and persist your data by setting up sync and storage infrastructure using Jazz Cloud, or host it yourself.

#Going deeper

Get better results with AI by importing the Jazz docs into your context window.

If you have any questions or need assistance, please don't hesitate to reach out to us on Discord. We'd love to help you get started.