Cayley vs RedisGraph: What are the differences?

Cayley: An open-source graph database. Cayley is an open-source graph inspired by the graph database behind Freebase and Google's Knowledge Graph. Its goal is to be a part of the developer's toolbox where Linked Data and graph-shaped data (semantic webs, social networks, etc) in general are concerned; RedisGraph: A High Performance In-Memory Graph Database as a Redis Module. RedisGraph is a graph database developed from scratch on top of Redis, using the new Redis Modules API to extend Redis with new commands and capabilities. Its main features include: - Simple, fast indexing and querying - Data stored in RAM, using memory-efficient custom data structures - On disk persistence - Tabular result sets - Simple and popular graph query language (Cypher) - Data Filtering, Aggregation and ordering.

Cayley and RedisGraph can be primarily classified as "Graph Databases" tools.

Cayley and RedisGraph are both open source tools. It seems that Cayley with 12.6K GitHub stars and 1.13K forks on GitHub has more adoption than RedisGraph with 707 GitHub stars and 67 GitHub forks.