DBDB.io The Encyclopedia of Database Systems · Est. 2017
Login

Database of Databases

A curated reference guide for implementations of the world's most important type of software.

↵ to browse
Browse All Leaderboards New in 2026
Amazon Database Systems Database Systems Developed by Amazon The Tiny Databases Databases Named 'Tiny' NoSQL Database Systems They Hated SQL Until They Loved It

Browse by Data Model

14 Models
Relational 490 Key-Value 254 Document / XML 220 Graph 97 Object-Oriented 64 Vector 58 Triplestore / RDF 28 Column Family / Wide-Column 28 Array / Matrix 22 Network 10 Hierarchical 8 Multi-Value 7 Entity-Relationship 4 Entity-Attribute-Value 2

Featured System

Updated Weekly
Solr
Solr

Solr

Document / XML Database System

Solr is an open source NoSQL enterprise search platform built on Apache Lucene. Supporting distributed search and index replication, Solr is highly reliable, scalable and fault tolerant. It runs as a…

Since 2004 AI-Assisted Apache v2
Read entry

The Leaderboards

Updated Daily

Most Recent

Newly modified entries
dbeel dbeel Document / XML today Delta Lake Delta Lake Column Family / Wide-Column 1d ago Elevator Elevator Key-Value 1d ago Clustrix Clustrix Relational 1d ago Column Column Relational 1d ago

Most Viewed

Last 30 days
Oracle Oracle Key-Value · Graph · Triplestore / RDF · Document / XML · Relational -13% Heroic Heroic Key-Value -4% Dolt Dolt Relational +20% JanusGraph JanusGraph Graph +8% TileDB TileDB Array / Matrix -21%

Most Edited

Last 30 days
AsaDB AsaDB Relational 4 HydraDB HydraDB Graph 4 CamusDB CamusDB Key-Value · Relational 3 JabrDB JabrDB Document / XML · Graph · Relational 3 MO Model 204 Entity-Attribute-Value 3