Lightweight In-Memory Graph Database

Simple-graphdb is an open-source, lightweight, in-memory graph database designed for managing graph data structures directly within a JavaScript/TypeScript application. Currently at version 3.1.0, it offers a stable API for creating, manipulating, and traversing nodes and edges with properties. Unlike persistent graph databases such as Neo4j or Ontotext's GraphDB, simple-graphdb does not offer data persistence or advanced enterprise features like clustering or complex query languages. Its primary differentiators are its simplicity, zero-dependency footprint, and suitability for use cases where graph data needs to be modeled and queried programmatically within a single application process, such as social network simulations, routing algorithms, or in-memory knowledge graphs for smaller datasets. The library typically follows a moderate, stable release cadence, focusing on core graph operations and performance within its in-memory scope.