Databases with Log-structured Storage Organization


	Akutan Abandoned	2019	Triplestore / RDF	Log-structured	Abandoned
	ArangoDB Multi-Model AI-Assisted	2011	Document / XML, Graph, Key/Value	Log-structured	Multi-Model AI-Assisted
	AsterixDB OLAP AI-Assisted	2009	Document / XML	Log-structured	OLAP AI-Assisted
	Azure HorizonDB	2026	Relational	Log-structured
	BabuDB Abandoned	2008	Key/Value	Log-structured	Abandoned
	BadgerDB AI-Assisted	2017	Key/Value	Sorted Files, Log-structured	AI-Assisted
	BaikalDB	2018	Relational	Log-structured
	BerylDB	2021	Key/Value	Log-structured
	BigchainDB Abandoned Blockchain	2015	Document / XML, Key/Value	Log-structured	Abandoned Blockchain
	Bitcask Abandoned	2019	Key/Value	Log-structured	Abandoned
	CockroachDB NewSQL OLTP AI-Assisted	2014	Relational	Log-structured	NewSQL OLTP AI-Assisted
	DGraph Acquired Company AI-Assisted	2015	Graph	Log-structured	Acquired Company AI-Assisted
	EdgelessDB Abandoned	2021	Relational	Log-structured	Abandoned
	EsgynDB Failed Company	2015	Relational	Log-structured	Failed Company
	etcd Acquired Company	2013	Key/Value	Log-structured, Sorted Files	Acquired Company
	FaunaDB Serverless Failed Company	2012	Document / XML, Graph, Key/Value, Relational	Log-structured	Serverless Failed Company
	Fjall OLTP	2023	Key/Value	Log-structured	OLTP
FO	ForestDB Abandoned	2013	Key/Value	Log-structured	Abandoned
	GreptimeDB Time-Series AI-Assisted	2022	Relational	Log-structured	Time-Series AI-Assisted
HA	HaloDB Abandoned	2017	Key/Value	Log-structured	Abandoned
HA	HanoiDB Abandoned	2012	Key/Value	Log-structured	Abandoned
	HerdDB	2016	Relational	Log-structured
	Heroic Abandoned	2015	Key/Value	Log-structured	Abandoned
	HoraeDB Time-Series Abandoned	2021	Relational	Log-structured	Time-Series Abandoned
HO	HorizonDB Geospatial	2025	Document / XML	Log-structured	Geospatial
	HyperDex Abandoned NoSQL	2011	Key/Value	Log-structured	Abandoned NoSQL
	InfluxDB Time-Series AI-Assisted	2013	Column Family / Wide-Column	Log-structured	Time-Series AI-Assisted
	IoTDB Time-Series AI-Assisted	2017	Hierarchical	Log-structured	Time-Series AI-Assisted
	k4 Time-Series Abandoned	2024	Key/Value	Log-structured	Time-Series Abandoned
	ksqlDB Streaming AI-Assisted	2017	Key/Value, Relational	Log-structured	Streaming AI-Assisted
	KurrentDB Time-Series AI-Assisted	2012	Document / XML	Log-structured	Time-Series AI-Assisted
	Kvrocks NoSQL AI-Assisted	2019	Key/Value	Log-structured	NoSQL AI-Assisted
	LedisDB Abandoned NoSQL	2014	Key/Value	Log-structured	Abandoned NoSQL
	LevelDB MMAP	2011	Key/Value	Log-structured	MMAP
	LotusDB OLTP	2021	Key/Value	Log-structured	OLTP
	M3DB Time-Series AI-Assisted	2018	Relational	Log-structured	Time-Series AI-Assisted
	Materialize Streaming AI-Assisted	2019	Relational	Log-structured	Streaming AI-Assisted
	MenteDB AI-Assisted	2026	Vector, Graph	Log-structured	AI-Assisted
	MobyDB	2026	Key/Value	Log-structured
	NamiDB NoSQL	2026	Graph	Log-structured	NoSQL
	Neon Serverless Forked Code Acquired Company OLTP	2021	Relational	Log-structured	Serverless Forked Code Acquired Company OLTP
	Netlify Database Serverless Hosting Service	2024	Relational	Log-structured	Serverless Hosting Service
	NodeDB Multi-Model Nearest Neighbor Search AI-Assisted	2026	Vector, Graph, Array / Matrix, Document / XML, Relational	Log-structured	Multi-Model Nearest Neighbor Search AI-Assisted
	NoKV NoSQL AI-Assisted	2024	Key/Value	Log-structured	NoSQL AI-Assisted
	NutsDB AI-Assisted	2018	Key/Value	Log-structured	AI-Assisted
	Pebble AI-Assisted	2018	Key/Value	Log-structured	AI-Assisted
PN	PNUTS Abandoned OLTP NoSQL	2008	Key/Value	Log-structured	Abandoned OLTP NoSQL
	PolarDB	2017	Relational	Log-structured
	Quadrable Abandoned	2020	Key/Value	Log-structured	Abandoned
	QuestDB Time-Series AI-Assisted	2014	Relational	Log-structured	Time-Series AI-Assisted
	RaimaDB Time-Series	1984	Network, Relational	Log-structured	Time-Series
	RelationalAI	2018	Graph, Relational	Log-structured
	RethinkDB Failed Company NoSQL	2009	Document / XML	Log-structured	Failed Company NoSQL
	RisingWave Streaming AI-Assisted	2021	Relational	Log-structured	Streaming AI-Assisted
	RocksDB Forked Code OLTP	2012	Key/Value	Log-structured	Forked Code OLTP
	SereneDB OLAP OLTP Search Engine AI-Assisted	2024	Relational	Log-structured	OLAP OLTP Search Engine AI-Assisted
	SirixDB AI-Assisted	2012	Document / XML	Log-structured, Copy-on-Write / Shadow Paging	AI-Assisted
	Sklad NoSQL	2024	Key/Value	Log-structured	NoSQL
	SlateDB AI-Assisted	2024	Key/Value	Log-structured	AI-Assisted
	Sled	2016	Key/Value	Log-structured
	Sophia Abandoned OLTP NoSQL	2014	Key/Value	Log-structured	Abandoned OLTP NoSQL
	Speedb Forked Code Acquired Company	2020	Key/Value	Log-structured	Forked Code Acquired Company
	SSDB Abandoned	2013	Key/Value	Log-structured	Abandoned
	Starskey OLTP	2025	Key/Value	Log-structured	OLTP
	Stig Abandoned Failed Company	2010	Graph	Log-structured	Abandoned Failed Company
	SwayDB Abandoned	2018	Key/Value	Log-structured	Abandoned
	Tendis NoSQL	2018	Key/Value	Log-structured	NoSQL
	TerarkDB Forked Code Acquired Company	2016	Key/Value	Log-structured	Forked Code Acquired Company
	TiDB NewSQL AI-Assisted	2015	Key/Value	Log-structured	NewSQL AI-Assisted
	TidesDB OLTP	2024	Column Family / Wide-Column	Log-structured	OLTP
	TigerGraph	2012	Graph	Log-structured
	TokuMX Forked Code Acquired Company Abandoned	2013	Document / XML	Log-structured	Forked Code Acquired Company Abandoned
	Tonbo OLTP AI-Assisted	2024	Key/Value	Log-structured	OLTP AI-Assisted
	ToplingDB Forked Code AI-Assisted	2021	Key/Value	Log-structured	Forked Code AI-Assisted
	tsink Time-Series	2025	—	Log-structured	Time-Series
	UnisonDB Multi-Model	2025	Column Family / Wide-Column, Key/Value	Log-structured	Multi-Model
	VelarixDB	2024	Key/Value	Log-structured
	Weaviate Nearest Neighbor Search Search Engine MMAP AI-Assisted	2016	Vector	Log-structured	Nearest Neighbor Search Search Engine MMAP AI-Assisted
	WiredTiger Acquired Company AI-Assisted	2008	Key/Value	Log-structured, Heaps	Acquired Company AI-Assisted
	XTDB AI-Assisted	2018	Document / XML	Log-structured	AI-Assisted
	YugabyteDB Forked Code OLTP AI-Assisted	2016	Key/Value, Relational	Log-structured	Forked Code OLTP AI-Assisted
	ZODB	2002	Object-Oriented	Log-structured, Copy-on-Write / Shadow Paging