The world's most popular open source database

A powerful, open source object-relational database system

The database for giant ideas

High-performance, distributed memory object caching system

An enhanced, drop-in replacement for MySQL

A software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine

Cassandra is a partitioned row store. Rows are organized into tables with a required primary key.

Open-source software for reliable, scalable, distributed computing

Oracle Database is an RDBMS that implements object-oriented features such as user-defined types, inheritance, and polymorphism

An open-source distributed time series database with no external dependencies

HTTP + JSON document database with Map Reduce views and peer-based replication

JSON. Scales to multiple machines with very little effort. Open source.

Document-Oriented NoSQL Database

The Hadoop database, a distributed, scalable, big data store

A distributed, decentralized data storage system

A distributed open-source database with a flexible data model for documents, graphs, and key-values.

Open-source JavaScript database inspired by Apache CouchDB that's designed to run well within the browser

A family of database server products developed by IBM

Relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platform

Embeddable persistent key-value store for fast storage, developed and maintained by Facebook Database Engineering Team

Highly scalable time-series database optimized for fast ingest and complex queries. Packaged as a PostgreSQL extension.

Worry-free Postgres for SaaS. Built to scale out.

Schema-agnostic Enterprise NoSQL database technology, coupled w/ powerful search & flexible application services

The fully transactional, cloud-ready, distributed database

The Distributed Database for Docker

A high-performance, concurrent, compressing, drop-in replacement engine for MongoDB

A distributed NewSQL database compatible with MySQL protocol

A fast, reactive, client-side database

Column-store database

A handy cache/storage server

Fast Time Series Database on Cassandra

A fast key-value store written natively in Go

Moving on-premise databases to the cloud, cheaply and securely

A scalable time series database based on Cassandra and Elasticsearch, by Spotify

Multi-model database with particularly strong fault tolerance, performance, and operational ease.

A fast, distributed metric store

A scale-out SQL database for global operations

Open source GPU-Powered Database

A new decentralized database based on ideas from Git

A relational database for web apps, by Google

An efficient tool for storing and querying series of events, by AdRoll

A fast and efficient time series storage based on Apache Lucene and Apache Solr

A key-value store for microcontroller and IoT applications

The lightweight, distributed relational database built on SQLite