The open-source database for the realtime web

Install RethinkDB →

RethinkDB pushes JSON to your apps in realtime.

When your app polls for data, it becomes slow, unscalable, and cumbersome to maintain.

RethinkDB is the open-source, scalable database that makes building realtime apps dramatically easier.

What is RethinkDB?go

r.table('game').orderBy('score').limit(3).changes()

Top player scores

  • 1.
  • 2.
  • 3.

    Streaming RethinkDB results...

      Building realtime apps just got easy

      • Reactive web and mobile apps

        Web apps like Google Docs, Trello, and Quora pioneered the realtime experience on the web. With RethinkDB, you can build amazing realtime apps with dramatically less engineering effort.

      • Multiplayer games

        When a player takes an action in a multiplayer game, every other player in the game needs to see the change in realtime. RethinkDB dramatically simplifies the data infrastructure for low latency, high throughput realtime interactions.

      • Realtime marketplaces

        RethinkDB dramatically reduces the complexity of building realtime trading and optimization engines. Publish realtime updates to thousands of clients, and provide pricing updates to users in milliseconds.

      • Streaming analytics

        Build realtime dashboards with RethinkDB data push notifications, and make instantaneous business decisions.

      • Connected devices

        RethinkDB dramatically simplifies modern IoT infrastructures. Stream data between connected devices, enable messaging and signaling, and trigger actions in millions of devices in milliseconds.

      What's in the box?

      Work with your favorite stack

      Query JSON documents with Python, Ruby, Node.js or dozens of other languages. Build modern apps using your favorite web framework, paired with realtime technologies like Socket.io or SignalR.

      Robust architecture

      RethinkDB integrates the latest advances in database technology. It has a modern distributed architecture, a highly-optimized buffer cache, and a state of the art storage engine. All of these components work together to create a robust, scalable, high-performance database.

      Built with love by the open source community

      Developed by a core team of database experts and over 100 contributors from around the world, RethinkDB is shaped by developers like you participating in an open development process.

      Scale your cluster in seconds

      When you're ready to scale your app, shard and replicate in a few clicks using an intuitive web UI.

      If you need it, a simple API provides precise control over the cluster: 

      r.table('games').reconfigure(shards=5, replicas=3)

      Monitor your production cluster with live statistics and complete visibility into running jobs: 

      r.db('rethinkdb').table('jobs').changes()
      Learn more go

      Install in seconds on Linux, OS X, or Windows

      Install RethinkDB go Learn more go

      Join over 100,000 developers

      RethinkDB Geolocation Features Ryan Paul Nov 4, 2014

      Deploying realtime apps with RethinkDB and Docker Michael Glukhovsky Nov 7, 2014

      Publish-Subscribe with RethinkDB Josh Kuhn Sept 11, 2014

      Art and Open Source Annie Ruygt Sept 11, 2014

      • RethinkDB has the best query language of all new databases I’ve seen. Guillermo Rauch, Cloudup CTO, creator of Mongoose
      • RethinkDB is probably the most interesting new ‘on-disk + complex queries’ database out there. For sure made by people who get it. Salvatore Sanfillipo, creator of Redis
      • At NASA, RethinkDB is radically simplifying how we provide real-time services in support of Extra-Vehicular Activity. Collin Estes, Director of Software Engineering, Chief Architect - MRI Technologies Inc. - NASA / ESOC