TerminusDB – An open source in-memory graph database
TerminusDB – An open source in-memory graph database launched on April 14, 2020 with 231 votes, #104 of 5,003 launches that month and more than 95% of that year's launches.
In plain words
TerminusDB is an open source in-memory graph database designed for developers. It stores and queries data as interconnected nodes and relationships, enabling complex data modeling and retrieval. The tool is built for applications that require fast access to relational data structures, such as knowledge graphs, semantic search, and data integration tasks. As an in-memory system, it prioritizes performance for real-time operations.
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An open souce graph database written in Prolog and Rust2020 · github.com · ▲29TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data. - terminusdb/terminusdb
OSS linked JSON knowledge graph2021 · github.com · ▲5TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data. - terminusdb/terminusdb
TerminusDB 2.0 - time traveling FOSS database that stores data like Git2020 · github.com · ▲13TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data. - terminusdb/terminusdb
- T4TerminusDB 4.0 'Data and Content Management in a Box'2020 · terminusdb.com · ▲19
HelixDB – Open-source vector-graph database for AI applications (Rust)2025 · github.com · ▲237Hey HN, we want to share HelixDB (https://github.com/HelixDB/helix-db/), a project a college friend and I are working on. It’s a new database that natively intertwines graph and vector types, without sacrificing performance. It’s written in Rust and our initial focus is on supporting RAG. Here’s a video runthrough: https://screen.studio/share/szgQu3yq. Why a hybrid? Vector databases are useful for similarity queries, while graph databases are useful for relationship queries. Each stores data in a way that’s best for its main type of query (e.g.…
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