The Document-Graph database with the support of ACID Transactions, SQL and Native Queries, Asynchronous Commands, Intents, and much more.

Deeply scalable Document-Graph DBMS. It's the basic engine of all the Orient products. It can work in schema-less mode, schema-full or a mix of both. Supports advanced features, such as ACID transactions, indexing, fluent and SQL-like queries. It handles natively JSON documents.
Super fast

On common hardware* stores up to 150.000 documents per second, 10 billions of documents per day

Transactional

Supports ACID Transactions. On crash it recovers the pending documents

GraphDB

Native management of trees and graphs. 100% compliant with TinkerPop Blueprints standard for GraphDBs

SQL

Supports SQL language with extensions to handle relationships without JOINs, manage trees and graphs of connected documents

Web ready

Supports natively HTTP, RESTful protocol and JSON without use 3rd party libraries and components

Everywhere

All the engine is 100% pure Java: runs on Linux, Windows and any system that supports the Java technology

Embeddable

Small footprint using the Local mode. Perfect for scenarios where the database is embedded

Apache2 license

Always FREE for any usage. No fees or royalties are requested to use it. Want professional support?

Extremely light

About 1Mb for the full server.
No dependencies from other software. No libraries needed

* Tested on a HP Pavilion dv6 with Intel(r) Core i7 720q, 4 GB RAM and HD E-SATA 7.200rpm
Products
Orient DB
Orient GraphDB
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