Grafeo is a pure-Rust, high-performance graph database that can be embedded as a library or run as a standalone database, with optional in-memory or persistent storage. Grafeo supports both LPG and RDF and all major query languages.
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In Memory Database GitHub Repositories (2026) · Open Source Tools
Discover the best In Memory Database open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
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4 matching projects · updated Nov 13, 2026
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Apache Ignite
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OpenMLDB is an open-source machine learning database that provides a feature platform computing consistent features for training and inference.
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High-Performance Java-Native-Persistence. Store and load any Java Object Graph or Subgraphs partially, Relieved of Heavy-weight JPA. Microsecond Response Time. Ultra-High Throughput. Minimum of Latencies. Create Ultra-Fast In-Memory Database Applications & Microservices.
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