sharedb - A database frontend for concurrent editing systems
pg-bricks - Higher level PostgreSQL client for Node.js
graphiql-app - Light, Electron-based Wrapper around GraphiQL
react-router-relay - Relay integration for React Router
graphql-mongodb-example - An example of Express and MongoDB with Relay and GraphQL working together
adrenaline - Simple Relay alternative
graphql - GraphQL is a query language and execution engine tied to any backend service.