LatticeDB – Like SQLite but for graph databases

LatticeDB is an embedded, single-file property-graph database that combines native HNSW vector similarity, BM25 full-text indexing, and graph traversal in one query language, supporting durable event streams and a write-ahead log. It delivers sub-microsecond node lookups and sub-millisecond vector searches on one million vectors with 100% recall, and provides language bindings for Python, TypeScript, Java, and Go with straightforward installation scripts.