Apache Kafka vs Neo4j

Apache Kafka is an open-source distributed event streaming platform used for building real-time data pipelines and streaming applications. Originally developed at LinkedIn, it provides high-throughput, fault-tolerant publish-subscribe messaging with persistent storage. Kafka supports stream processing through Kafka Streams and ksqlDB.

Neo4j is Graph database that stores and queries data as nodes and relationships using the Cypher query language.. It is available under a freemium model. This tool falls under the databases category.