Database-related software for Linux

dBase (also stylized dBASE) was one of the first database management systems for microcomputers, and the most successful in its day.

Couchbase Server, originally known as Membase, is an open-source, distributed (shared-nothing architecture) multi-model NoSQL document-oriented database software package that is optimized for interactive applications.

ObjectDatabase++ (ODBPP) is an embeddable object-oriented database designed for server applications that require minimal external maintenance.

MongoDB (from humongous) is a free and open-source cross-platform document-oriented database program.

OrientDB is an open source NoSQL database management system written in Java.

Solr (pronounced "solar") is an open source enterprise search platform, written in Java, from the Apache Lucene project.

Sedna is an open source database management system that provides native storage for XML data.

Berkeley DB (BDB) is a software library intended to provide a high-performance embedded database for key/value data.

Apache CouchDB is open source database software that focuses on ease of use and having an architecture that "completely embraces the Web".

eXist is an open source software project for NoSQL databases built on XML technology.

BaseX is a native and light-weight XML database management system and XQuery processor, developed as a community project on GitHub.

The Generic Mapping Tools (GMT) are an open-source collection of computer software tools for processing and displaying xy and xyz datasets, including rasterisation, filtering and other image processing operations, and various kinds of map projections.

TokuMX is an open source distribution of MongoDB which, among other things, replaces the default B-tree data structure found in the basic MongoDB distribution with a Fractal tree index.

TokuDB is an open source, high-performance storage engine for MySQL and MariaDB.

CrateIO is a fully searchable document oriented data store.

Elasticsearch is a search engine based on Lucene.

NuoDB is a database startup company based in Cambridge, Massachusetts.

OpenEdge Advanced Business Language, or OpenEdge ABL for short, is a business application development language created and maintained by Progress Software Corporation (PSC).

Oracle NoSQL Database is a NoSQL-type distributed key-value database from Oracle Corporation.

Qizx is a proprietary XML database that provides native storage for XML data.

Macrofocus TreeMap is an information visualization software package that produces different kinds of heat or tree maps using source data from common software packages (e.g. Excel, Access), SQL databases or online data sources such as Yahoo! Finance.

Clusterpoint is a European software technology company developing and supporting Clusterpoint database management system platform.