elasticsearch by elastic

Free and Open Source, Distributed, RESTful Search Engine

created at Feb. 8, 2010, 1:20 p.m.

Java

2,677 +1

69,835 +110

24,713 +36

GitHub
neo4j by neo4j

Graphs for Everyone

created at Nov. 12, 2012, 8:46 a.m.

Java

523 +0

13,235 +31

2,380 +3

GitHub
cassandra by apache

Apache Cassandra®

created at May 21, 2009, 2:10 a.m.

Java

442 -1

8,774 +19

3,615 +3

GitHub
titan by thinkaurelius

Distributed Graph Database

created at Feb. 25, 2012, 10:53 p.m.

Java

404 +0

5,251 +3

1,013 +0

GitHub
mapdb by jankotek

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

created at Aug. 17, 2012, 3:28 p.m.

Java

313 +1

4,891 -1

873 +0

GitHub
orientdb by orientechnologies

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.

created at Dec. 9, 2012, 8:33 p.m.

Java

274 +0

4,740 +5

871 +0

GitHub
voldemort by voldemort

An open source clone of Amazon's Dynamo.

created at May 31, 2009, 3:27 a.m.

Java

144 +0

2,639 +0

584 +0

GitHub