Query graph data with Neo4j in a cloud workspace.
Start coding free →Neo4j is an open-source graph database that stores entities as nodes and relationships as edges. It uses Cypher, a declarative query language designed for graph traversal, and performs well on queries that follow complex relationship paths. Neo4j is used for recommendation engines, fraud detection, and knowledge graphs. On RunCode, you can set up Neo4j in a Linux workspace and start writing Cypher queries in minutes.
Open a Neo4j workspace →Neo4j stores data as nodes and edges, each with their own properties and labels. Cypher queries read naturally and express graph patterns directly. The database indexes nodes and supports transactions, so you can build consistent, queryable graphs. It integrates with Python, Java, and other languages through official drivers.