[

{

"name": "1010data",

"slug": "1010data",

"country": "United States of America",

"start_year": "2000",

"project_types": [

"Commercial"

],

"lastmod": "2022-01-03",

"fetched": true

},

{

"name": "3store",

"slug": "3store",

"description": "3store is an RDF \"triple store\", written in C and backed by MySQL and Berkeley DB. It is an optimization and port of an older triple store (WebKBC). It provides access to the RDF data via RDQL or SPARQL over HTTP, on the command line or via a C API.",

"data_models": [

"Triplestore / RDF"

],

"country": "United Kingdom",

"start_year": "2003",

"project_types": [

"Academic",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"GPL v2"

],

"lastmod": "2023-09-29",

"fetched": true

},

{

"name": "4D",

"slug": "4d",

"description": "4D is a relational DBMS that is integrated with an IDE and a proprietary programming language. It allows users to create custom graphical interfaces to work with their database, which can then be run on Windows or Mac OS systems to edit a locally stored database file. 4D can run as a server so th…",

"data_models": [

"Relational"

],

"country": "France",

"start_year": "1984",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2019-12-11",

"fetched": true

},

{

"name": "4store",

"slug": "4store",

"data_models": [

"Triplestore / RDF"

],

"country": "United Kingdom",

"start_year": "2009",

"project_types": [

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"GPL v3"

],

"lastmod": "2018-06-04",

"fetched": true

},

{

"name": "abhot",

"slug": "abhot",

"description": "abhot (\"A Brief History Of Time\") is a time-series database management system. It is a fork of KairosDB.",

"country": "China",

"start_year": "2017",

"project_types": [

"Academic",

"Open Source"

],

"written_in": [

"Java"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-10-01",

"fetched": true

},

{

"name": "Access",

"slug": "access",

"description": "Microsoft Access is a database management system from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools. It is supported by Visual Basic for Applications (VBA) and allows developers to develop application software. …",

"data_models": [

"Relational"

],

"country": "United States of America",

"start_year": "1992",

"project_types": [

"Commercial"

],

"written_in": [

"C++"

],

"licenses": [

"Proprietary"

],

"lastmod": "2024-10-31",

"fetched": true

},

{

"name": "Accumulo",

"slug": "accumulo",

"description": "Apache Accumulo is a sorted, distributed key-value store based on Google's Bigtable, HDFS and Apache Zookeeper. First designed and developed by a team in NSA, Accumulo's mission is to support big data storing and processing, but at the same time enforce fine-grained data access control. In particu…",

"data_models": [

"Column Family / Wide-Column"

],

"country": "United States of America",

"start_year": "2008",

"project_types": [

"Open Source"

],

"written_in": [

"Java"

],

"licenses": [

"Apache v2"

],

"lastmod": "2022-06-27",

"fetched": true

},

{

"name": "AceBase",

"slug": "acebase",

"description": "AceBase is a document-oriented DBMS that supports pub/sub real-time notifications. It is designed for JavaScript environments (browsers, node.js).",

"data_models": [

"Document / XML"

],

"country": "Netherlands",

"start_year": "2018",

"project_types": [

"Hobby",

"Open Source"

],

"written_in": [

"TypeScript"

],

"licenses": [

"MIT"

],

"lastmod": "2023-07-25",

"fetched": true

},

{

"name": "AceDB",

"slug": "acedb",

"description": "AceDB (\"a C. elegans database\") is a biological database for handling genomic data. It was developed by Richard M. Durbin and Jean Thierry-Mieg in 1989.",

"country": "United Kingdom",

"start_year": "1989",

"project_types": [

"Academic",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"GPL v2",

"LGPL v2"

],

"lastmod": "2018-05-29",

"fetched": true

},

{

"name": "ActivePivot",

"slug": "activepivot",

"description": "ActivePivot is a distributed, in-memory DBMS designed for HTAP workloads, which supports real-time data streams and continuous queries. It uses a columnar storage architecture with dictionary compression and binary representation of Java objects. The system can also materialize OLAP cubes, construc…",

"data_models": [

"Relational"

],

"country": "France",

"project_types": [

"Commercial"

],

"written_in": [

"Java"

],

"licenses": [

"Proprietary"

],

"lastmod": "2022-01-03",

"fetched": true

},

{

"name": "ActorDB",

"slug": "actordb",

"description": "ActorDB is a distributed relational SQL database, which is strongly consistent, massively concurrent, and horizontally scalable. It supports no single point of failure and uses no global read or write locks. To achieve the features provided, ActorDB uses Raft distributed consensus algorithm on top …",

"data_models": [

"Relational"

],

"country": "Slovenia",

"start_year": "2014",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"Erlang"

],

"licenses": [

"Mozilla Public License"

],

"lastmod": "2025-02-02",

"fetched": true

},

{

"name": "Adabas",

"slug": "adabas",

"description": "ADABAS (\"adaptable database system\") is a database package developed by Software AG for IBM mainframes in the 1970s.",

"country": "Germany",

"start_year": "1971",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2022-06-27",

"fetched": true

},

{

"name": "Adaptive Server Enterprise",

"slug": "adaptive-server-enterprise",

"description": "Adaptive Server Enterprise (ASE) (also known as \"Sybase DB\" or \"Sybase ASE\") is a relational DBMS developed by the Sybase Corporation in the 1980s.",

"data_models": [

"Relational"

],

"country": "United States of America",

"start_year": "1987",

"project_types": [

"Commercial"

],

"written_in": [

"C",

"C++"

],

"licenses": [

"Proprietary"

],

"lastmod": "2023-11-20",

"fetched": true

},

{

"name": "Advantage Database Server",

"slug": "advantage-database-server",

"description": "Sybase Advantage Database Server is a relational DBMS released in the 1990s.",

"data_models": [

"Relational"

],

"country": "United States of America",

"start_year": "1993",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2024-10-31",

"fetched": true

},

{

"name": "Aerospike",

"slug": "aerospike",

"description": "Aerospike is a distributed key-value DBMS. It is mainly targeted at OLTP workloads with large number of transactions. It is developed by a company of the same name.",

"data_models": [

"Key/Value",

"Document / XML",

"Vector"

],

"country": "United States of America",

"start_year": "2009",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"AGPL v3"

],

"lastmod": "2025-04-22",

"fetched": true

},

{

"name": "AgateDB",

"slug": "agatedb",

"description": "AgateDB is an embeddable, persistent key-value DBMS written in Rust. It is built by Pingcap as a replacement for [TiKV](/db/tikv).",

"data_models": [

"Key/Value"

],

"country": "China",

"start_year": "2019",

"project_types": [

"Industrial Research",

"Open Source"

],

"written_in": [

"Rust"

],

"licenses": [

"Apache v2"

],

"lastmod": "2022-05-08",

"fetched": true

},

{

"name": "AGEDB",

"slug": "agedb",

"description": "AGEDB is the commercial version of PostgreSQL using the Apache AGE graph API extension.",

"data_models": [

"Graph"

],

"country": "Canada",

"start_year": "2019",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-06-15",

"fetched": true

},

{

"name": "AgensGraph",

"slug": "agensgraph",

"description": "AgensGraph is a multi-model database based on PostgreSQL RDBMS, and supports both relational and graph data models. AgensGraph enables developers to integrate the legacy relational data model and the flexible graph data model in one database. AgensGraph supports Ansi-SQL and Open Cypher. SQL querie…",

"data_models": [

"Relational",

"Key/Value",

"Document / XML",

"Graph"

],

"country": "United States of America",

"start_year": "2013",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-08-08",

"fetched": true

},

{

"name": "Aito",

"slug": "aito",

"description": "Aito is a cloud-based predictive database, that provides predictive queries as an addition to the traditional database queries. Aito's predictive queries are based on the lazy machine learning approach as a difference to the traditional eager way of doing machine learning. The lazy learning makes i…",

"country": "Finland",

"start_year": "2017",

"project_types": [

"Commercial"

],

"written_in": [

"Scala"

],

"licenses": [

"Proprietary"

],

"lastmod": "2022-06-27",

"fetched": true

},

{

"name": "AKDB",

"slug": "akdb",

"description": "AKDB (\"Avtomat Kalasnikova Database\") is an educational relational DBMS developed at the University of Zagreb.",

"data_models": [

"Relational"

],

"country": "Croatia",

"start_year": "2009",

"project_types": [

"Academic",

"Educational",

"Open Source"

],

"written_in": [

"C"

],

"lastmod": "2023-09-29",

"fetched": true

},

{

"name": "Akiban",

"slug": "akiban",

"description": "Akiban was a MySQL storage engine that performed automatic denormalization of relational tables to speed up join queries.",

"country": "United States of America",

"start_year": "2009",

"project_types": [

"Commercial"

],

"lastmod": "2023-09-27",

"fetched": true

},

{

"name": "Akumuli",

"slug": "akumuli",

"description": "Akumuli is a time-series DBMS.",

"country": "Russia",

"start_year": "2013",

"project_types": [

"Open Source"

],

"written_in": [

"C++"

],

"licenses": [

"Apache v2"

],

"lastmod": "2022-01-06",

"fetched": true

},

{

"name": "Akutan",

"slug": "akutan",

"description": "Akutan is a distributed knowledge graph DBMS written in Go.",

"data_models": [

"Triplestore / RDF"

],

"country": "United States of America",

"start_year": "2019",

"project_types": [

"Industrial Research",

"Open Source"

],

"written_in": [

"Go"

],

"licenses": [

"Apache v2"

],

"lastmod": "2020-12-15",

"fetched": true

},

{

"name": "AlaSQL",

"slug": "alasql",

"description": "AlaSQL is a relational DBMS designed to run in web browsers and JavaScript-based application servers (Node.js). It supports both relational tables and document-oriented collections (JSON).",

"data_models": [

"Relational",

"Document / XML"

],

"country": "Russia",

"start_year": "2014",

"project_types": [

"Open Source"

],

"written_in": [

"JavaScript"

],

"licenses": [

"MIT"

],

"lastmod": "2019-12-11",

"fetched": true

},

{

"name": "AlchemyDB",

"slug": "alchemydb",

"description": "AlchemyDB is a NewSQL RDBMS built on top [Redis](/db/redis).",

"data_models": [

"Relational"

],

"country": "United States of America",

"start_year": "2010",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"AGPL v3"

],

"lastmod": "2023-10-03",

"fetched": true

},

{

"name": "Alenka",

"slug": "alenka",

"description": "Alenka is a GPU-based query execution engine.",

"data_models": [

"Relational"

],

"country": "United States of America",

"start_year": "2012",

"project_types": [

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-10-10",

"fetched": true

},

{

"name": "Algebraix",

"slug": "algebraix",

"country": "United States of America",

"start_year": "2009",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2018-06-04",

"fetched": true

},

{

"name": "AllegroGraph",

"slug": "allegrograph",

"description": "AllegroGraph is a database and application framework for building Semantic Web applications. It can store data and meta-data as triples, query these triples through various query APIs like SPARQL and Prolog, and apply RDFS++ reasoning with its built-in reasoner. It's a high performance, persistent…",

"data_models": [

"Triplestore / RDF"

],

"country": "United States of America",

"start_year": "2004",

"project_types": [

"Commercial"

],

"written_in": [

"Lisp"

],

"licenses": [

"Proprietary"

],

"lastmod": "2022-01-03",

"fetched": true

},

{

"name": "AlloyDB",

"slug": "alloydb",

"description": "AlloyDB is a fully-managed database system that is a fork from PostgreSQL created by Google Cloud. AlloyDB separates the database layer from the storage layer. The disaggregated storage layer first handles write operations by writing the write-ahead log (WAL) to storage. A log processing service (L…",

"data_models": [

"Object-Relational"

],

"country": "United States of America",

"start_year": "2022",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2023-05-01",

"fetched": true

},

{

"name": "Altibase",

"slug": "altibase",

"description": "Atibase is a relational open-source database management system that is compatible and interoperable with Oracle. Atibase is a hybrid database – data can be stored and manipulated in main memory alone, and physical disk alone, or a combination of both. Altibase is an in-memory database, and its util…",

"data_models": [

"Relational"

],

"country": "South Korea",

"start_year": "1999",

"project_types": [

"Commercial"

],

"written_in": [

"C",

"C++"

],

"licenses": [

"AGPL v3"

],

"lastmod": "2024-10-24",

"fetched": true

},

{

"name": "Amelie",

"slug": "amelie",

"description": "Amelie is an in-memory relational DBMS designed for OLTP workloads.",

"data_models": [

"Relational"

],

"country": "Cyprus",

"start_year": "2023",

"project_types": [

"Hobby",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"AGPL v3"

],

"lastmod": "2025-02-17",

"fetched": true

},

{

"name": "Amisa Server",

"slug": "amisa-server",

"description": "Amisa Server was a NoSQL database-as-a-service.",

"data_models": [

"Document / XML"

],

"country": "Canada",

"start_year": "2014",

"project_types": [

"Commercial"

],

"lastmod": "2023-09-29",

"fetched": true

},

{

"name": "AncelusDB",

"slug": "ancelusdb",

"description": "AncelusDB is time-series DBMS.",

"data_models": [

"Entity-Relationship"

],

"country": "United States of America",

"start_year": "1983",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2022-01-07",

"fetched": true

},

{

"name": "AngstromDB",

"slug": "angstromdb",

"description": "AngstromDB is a NoSQL key-value DBMS based on [LMDB](/db/lmdb).",

"data_models": [

"Key/Value"

],

"country": "France",

"start_year": "2013",

"project_types": [

"Hobby",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-10-03",

"fetched": true

},

{

"name": "AnnaDB",

"slug": "annadb",

"description": "AnnaDB is an in-memory document-oriented NoSQL DBMS that stores data in proprietary [Typed Simple Object Notation (TySON)](https://github.com/roman-right/tyson) format.",

"data_models": [

"Document / XML"

],

"country": "Germany",

"start_year": "2021",

"project_types": [

"Hobby",

"Open Source"

],

"written_in": [

"Rust"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-04-06",

"fetched": true

},

{

"name": "AnnDB",

"slug": "anndb",

"description": "AnnDB is a distributed vector DBMS that supports approximate nearest neighbor queries.",

"data_models": [

"Vector"

],

"country": "Czechia",

"start_year": "2020",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"Go"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-09-22",

"fetched": true

},

{

"name": "AntDB",

"slug": "antdb",

"description": "AntDB is a distributed DBMS forked from PostgreSQL.",

"data_models": [

"Object-Relational"

],

"country": "China",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"Apache v2"

],

"lastmod": "2024-06-17",

"fetched": true

},

{

"name": "Antidote",

"slug": "antidote",

"description": "AntidoteDB is a geo-replicated key-value DBMS that uses CRDTs to synchronize changes between nodes.",

"data_models": [

"Key/Value"

],

"country": "France",

"start_year": "2015",

"project_types": [

"Academic",

"Open Source"

],

"written_in": [

"Erlang"

],

"licenses": [

"Apache v2"

],

"lastmod": "2022-01-03",

"fetched": true

},

{

"name": "AnuDB",

"slug": "anudb",

"description": "AnuDB is a serverless document-oriented DBMS for C++ applications.",

"data_models": [

"Document / XML"

],

"country": "India",

"start_year": "2025",

"project_types": [

"Hobby",

"Open Source"

],

"written_in": [

"C++"

],

"licenses": [

"MIT"

],

"lastmod": "2026-01-21",

"fetched": true

},

{

"name": "AnzoGraph",

"slug": "anzograph",

"description": "AnzoGraph is an in-memory distributed graph DBMS designed for analytics.",

"data_models": [

"Graph"

],

"country": "United States of America",

"start_year": "2007",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2022-01-03",

"fetched": true

},

{

"name": "AODBM",

"slug": "aodbm",

"description": "AODBM (\"append only database manager\") is designed in the style of dbm.",

"country": "United Kingdom",

"start_year": "2011",

"project_types": [

"Open Source"

],

"written_in": [

"C"

],

"licenses": [

"LGPL v3"

],

"lastmod": "2018-06-04",

"fetched": true

},

{

"name": "Apollo",

"slug": "apollo-facebook",

"description": "Apollo is Facebook's document-oriented DBMS announced in 2014.",

"data_models": [

"Document / XML"

],

"country": "United States of America",

"start_year": "2014",

"project_types": [

"Commercial"

],

"lastmod": "2018-06-02",

"fetched": true

},

{

"name": "Apollo",

"slug": "apollo",

"description": "Apollo is a Windows-based desktop database management system that supports FoxPro files.",

"country": "United States of America",

"start_year": "1999",

"project_types": [

"Commercial"

],

"licenses": [

"Proprietary"

],

"lastmod": "2025-04-10",

"fetched": true

},

{

"name": "Arakoon",

"slug": "arakoon",

"description": "Arakoon was a distributed key-value store with strong consistency guarantees.",

"data_models": [

"Key/Value"

],

"country": "Belgium",

"start_year": "2010",

"project_types": [

"Open Source"

],

"written_in": [

"Ocaml"

],

"licenses": [

"Apache v2"

],

"lastmod": "2019-09-30",

"fetched": true

},

{

"name": "ArangoDB",

"slug": "arangodb",

"description": "ArangoDB is a multi-model mostly-memory database. It supports key-value, documents, and graphs stores with JSON data format. ArangoDB stores all data in persistent storage to provide durability. However, to efficiently use ArangoDB, the frequently accessed pages, or equivalently called the working …",

"data_models": [

"Key/Value",

"Document / XML",

"Graph"

],

"country": "Germany",

"start_year": "2011",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"C++"

],

"licenses": [

"Apache v2"

],

"lastmod": "2022-06-27",

"fetched": true

},

{

"name": "ArcadeDB",

"slug": "arcadedb",

"description": "ArcadeDB is a multi-model DBMS created as a fork from OrientDB.",

"data_models": [

"Relational",

"Key/Value",

"Document / XML",

"Graph"

],

"country": "United Kingdom",

"start_year": "2021",

"project_types": [

"Commercial",

"Open Source"

],

"written_in": [

"Java"

],

"licenses": [

"Apache v2"

],

"lastmod": "2025-12-01",

"fetched": true

},

{

"name": "ArcticDB",

"slug": "arcticdb",

"description": "ArcticDB is an embedded, columnar datastore designed for analytical workloads on time-series data. It supports Pandas and the Python Data Science ecosystem.",

"data_models": [

"Relational"

],

"country": "United Kingdom",

"start_year": "2018",

"project_types": [

"Open Source"

],

"written_in": [

"C++"

],

"licenses": [

"Business Source License"

],

"lastmod": "2023-07-15",

"fetched": true

},

{

"name": "Ardb",

"slug": "ardb",

"description": "Ardb is a Redis-compatible NoSQL DBMS that is designed to support multiple storage backends.",

"data_models": [

"Key/Value"

],

"country": "China",

"start_year": "2013",

"project_types": [

"Open Source"

],

"written_in": [

"C++"

],

"licenses": [

"BSD"

],

"lastmod": "2019-07-18",

"fetched": true

},

{

"name": "AresDB",

"slug": "aresdb",

"description": "AresDB is a GPU-based real-time analytics database with low memory overhead, real-time upserts with primary key deduplication, and time series aggregations on both streaming and finite dimensional data, including geofences.",

"data_models": [

"Relational"

],

"country": "United States of America",

"start_year": "2018",

"project_types": [

"Open Source"

],

"written_in": [

"C",

"C++",

"Go"

],

"licenses": [

"Apache v2"

],

"lastmod": "2023-09-25",

"fetched": true

},

{

"name": "Asami",

"slug": "asami",

"description": "Asami is a graph-oriented DBMS written in Clojure.",

"data_models": [

"Graph"

],

"country": "United States of America",

"start_year": "2018",

"project_types": [

"Hobby",

"Open Source"

],

"written_in": [

"Clojure"

],

"licenses": [

"Eclipse Public License"