Arcade Data Ltd

What is ArcadeDB?

ArcadeDB is an open-source, Apache 2.0 licensed multi-model graph database that natively supports graphs, documents, key-value pairs, full-text search, vectors, and time-series data in a single engine. It eliminates the need for polyglot persistence by handling all data models without performance-degrading translation layers.

Is ArcadeDB free?

Yes. ArcadeDB is completely free under the Apache 2.0 license with no usage limits, no enterprise edition paywalls, no cloud-only features, and no bait-and-switch licensing. Every feature (including HA replication, multi-model support, and all six query languages) is included at no cost.

What query languages does ArcadeDB support?

ArcadeDB natively supports SQL, OpenCypher 25 (the latest Cypher specification), Gremlin, GraphQL, the MongoDB query protocol, and a Java API. All languages access the same underlying data with no performance penalty.

Which version of the OpenCypher specification does ArcadeDB implement?

ArcadeDB implements the latest OpenCypher 25 grammar (Cypher 25), with a native engine that has passed 97.8% of the official OpenCypher TCK. This brings ArcadeDB in line with current Cypher tooling, documentation, and modern syntax features.

How does ArcadeDB compare to Neo4j?

ArcadeDB is fully open source under Apache 2.0 with no community vs. enterprise edition split, while Neo4j restricts many enterprise features behind a commercial license. ArcadeDB supports multiple data models natively (graph, document, key-value, vector, time-series), whereas Neo4j is primarily a graph database. ArcadeDB also supports Cypher, Gremlin, GraphQL, and SQL, not just Cypher.

How does ArcadeDB compare to MongoDB?

MongoDB is primarily a document database. ArcadeDB adds native graph traversal, key-value, full-text search, and vector support alongside document storage in a single engine. ArcadeDB is also fully Apache 2.0, while MongoDB uses SSPL for its server-side code.

Can I migrate from Neo4j or OrientDB to ArcadeDB?

Yes. ArcadeDB ships with built-in importers for both Neo4j and OrientDB, enabling migration in minutes without manual data transformation.

How do I install ArcadeDB?

ArcadeDB can be installed via Docker (docker run arcadedata/arcadedb:latest), downloaded as a binary from GitHub Releases, embedded in a Java application via Maven (groupId: com.arcadedb, artifactId: arcadedb-engine), or deployed on Kubernetes using the official Helm chart.