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Triplit
Full-stack syncing database for server and browser real-time apps
Open-source TypeScript database that syncs data between server and client in real-time with offline support, relational queries, and built-in conflict resolution.
Overview
What is Triplit?
Triplit is a full-stack database designed for modern real-time applications. Unlike traditional client-server architectures, Triplit runs as a TypeScript package on both server and browser, intelligently syncing queries and data between environments with minimal latency.
Core Capabilities
Built on CRDTs for conflict-free collaboration, Triplit delivers property-level conflict resolution, optimistic updates, and automatic offline mode with reconnection handling. The system supports relational querying through a simple JavaScript and React API, with pluggable storage providers including SQLite, IndexedDB, LevelDB, and in-memory options. Schema definitions provide type safety and TypeScript autocompletion, while server-enforced authorization secures both reads and writes.
Deployment & Audience
Triplit targets developers building collaborative tools, real-time dashboards, and offline-first progressive web apps. The monorepo includes a CLI for scaffolding projects, framework bindings for React and Svelte, a development sync server, and an admin console. Deploy the server component to Node environments while client libraries run in browsers, React Native, Deno, or Bun. Delta patches minimize network traffic, and durable server-side storage ensures data persistence across sessions.
Highlights
Real-time sync with property-level CRDT conflict resolution and delta patches
Full client-side database with relational queries and offline-first operation
Pluggable storage backends: SQLite, IndexedDB, LevelDB, Cloudflare Durable Objects
Type-safe schemas with server-enforced authorization and TypeScript autocompletion
Pros
- Single TypeScript codebase runs across server, browser, and edge environments
- Optimistic updates and automatic rollback create responsive user experiences
- Framework bindings for React and Svelte reduce integration complexity
- Comprehensive CLI tooling for scaffolding, migrations, and local development
Considerations
- AGPL-3.0 license requires source disclosure for modified server deployments
- Relatively new project with smaller ecosystem compared to Firebase or Supabase
- CRDT-based architecture may introduce learning curve for traditional SQL developers
- Limited framework bindings currently available beyond React and Svelte
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Fit guide
Great for
- Real-time collaborative applications requiring multiplayer editing and live updates
- Offline-first progressive web apps with automatic sync on reconnection
- Developers seeking type-safe, full-stack database solutions in TypeScript
- Teams building on Cloudflare Workers, Deno, or other edge compute platforms
Not ideal when
- Projects requiring permissive licensing for proprietary server modifications
- Applications with complex analytical queries better suited to traditional SQL databases
- Teams without TypeScript experience or JavaScript-first development workflows
- Systems needing mature ecosystem integrations with ORMs and migration tools
How teams use it
Collaborative Task Management
Multiple users edit todos simultaneously with instant sync, offline editing, and automatic conflict resolution when reconnected
Real-Time Analytics Dashboard
Live-updating charts and metrics stream from server to browser with minimal latency using incremental delta patches
Offline-First Field Service App
Technicians capture data without connectivity, with automatic background sync and consistency guarantees when online
Multiplayer Game State Management
Player actions sync across clients in real-time with CRDT-based conflict resolution and optimistic local updates
Tech snapshot
TypeScript88%
MDX10%
JavaScript2%
CSS1%
HTML1%
Svelte1%
Frequently asked questions
What storage providers does Triplit support?
Triplit offers pluggable storage including SQLite, IndexedDB, LevelDB, in-memory stores, and Cloudflare Durable Objects, allowing deployment across browsers, Node, Deno, and edge environments.
How does Triplit handle conflicts in real-time sync?
Triplit uses CRDTs (Conflict-free Replicated Data Types) with property-level conflict resolution, ensuring consistent state across clients without requiring manual merge logic.
Can I use Triplit with frameworks other than React?
Yes. Triplit provides official bindings for React and Svelte, plus a vanilla JavaScript client that works with Vue, Angular, or any framework. The core client runs in any JavaScript environment.
What are the licensing implications of AGPL-3.0?
AGPL-3.0 requires you to disclose source code if you modify and deploy the Triplit server over a network. Client-side usage in applications does not trigger this requirement.
Does Triplit require a hosted backend service?
No. You can self-host the Triplit sync server on any Node-compatible platform or use the local development server. There's no mandatory cloud service dependency.
Project at a glance
Active- Stars
- 3,050
- Watchers
- 3,050
- Forks
- 97
LicenseAGPL-3.0
Repo age2 years old
Last commit2 days ago
Primary languageTypeScript
Last synced 3 hours ago