GUN is a real-time, decentralized, offline-first, graph database engine.
Free and open-source
Best Amazon Neptune Alternatives ranked by AI · updated May 2025
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Amazon Neptune is a fast, reliable, fully-managed graph database service that makes it easy to build and run applications that work with highly connected datasets.
Price: Priced based on usage
Top 6 Amazon Neptune alternatives
ArangoDB is a multi-model database with flexible data models for documents, graphs, and key-values. It provides a unified query language and supports...
Free / Paid
Neo4j is a highly scalable native graph database that leverages data relationships as first-class entities, making it ideal for connected data applications.
Free community edition available, pricing for enterprise edition varies
GraphDB is a semantic graph database that allows you to link diverse data, discover new insights, and answer complex questions.
Contact for pricing
Aveloy Graph is a powerful graph database management system designed for high performance and scalability.
Contact for pricing
GraphJS is a powerful graph database management system for web applications.
Free trial available, pricing starts at $99/month
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