Best free graph database for order of 500 million nodes

This page summarizes the projects mentioned and recommended in the original post on /r/Neo4j
Cypher graph-database Database graph-analytics embedded-database

InfluxDB - Power Real-Time Data Analytics at Scale
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  • Memgraph

    Open-source graph database, tuned for dynamic analytics environments. Easy to adopt, scale and own.

  • kuzu

    Embeddable property graph database management system built for query speed and scalability. Implements Cypher.

    • Then you can try Kùzu: https://github.com/kuzudb/kuzu. It should do quite well. We are new but actively developing the system and would love to help you when you are prototyping your application.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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  • roadmap

    Learn more about Memgraph product roadmap! (by memgraph)

    • As u/Zealousideal_Plan591 said GQLAlchmey has support to store properties on disk (primarily valuable for large props), but the whole graph still has to fit in RAM. There is a plan (an idea) to add proper on-disk storage, but only a little is happening now. Our current focus is properly sharded graph storage across a cluster of machines (still in RAM). https://github.com/memgraph/roadmap is a recent public repo aiming to centralize all product development info. Please take a look. A few exciting projects are going on, and any feedback is welcome :D

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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