ArangoDB - the multi-model NoSQL database

ArangoDB

• is open source and free (Apache 2 license),
• offers convenient queries (via HTTP/REST and AQL),
• including joins between different collections,
• configurable consistency guarantees using transactions memory efficient by shape detection,
• uses JavaScript throughout (Google’s V8 built into server),
• API extensible by JS code in the Foxx Microservice Framework,
• offers many drivers for a wide range of languages,
• is easy to use with web ui + graph viewer and good documentation,
• overhauled cluster, streamlined graph functionalities, persistent indexes, a new binary storage format
• and enjoys good community as well as professional support.