The best open source alternative to TigerGraph is Memgraph. If that doesn't suit you, we've compiled a ranked list of other open source TigerGraph alternatives to help you find a suitable replacement.
TigerGraph alternatives are mainly Graph Databases but may also be In-Memory Databases. Browse these if you want a narrower list of alternatives or looking for a specific functionality of TigerGraph.
Memgraph is a scalable, in-memory graph database solution offering high-performance computing and Neo4j compatibility.

Memgraph is a powerful, in-memory graph database designed for high-performance computing and scalable data analysis. It offers seamless Neo4j compatibility, allowing users to easily transition existing projects or leverage familiar query languages.
Key benefits of Memgraph include:
Memgraph excels in use cases such as fraud detection, recommendation engines, network analysis, and knowledge graphs. Its ability to handle graph sizes from 100 GB to 4 TB makes it suitable for a wide range of applications.
With a strong focus on performance and scalability, Memgraph empowers organizations to unlock the full potential of their connected data, enabling deeper insights and more efficient decision-making processes.