The Best Time-Series Databases in 2026

• 36 tools ranked
• Updated Oct 2026
• Researched from official sources
• Compare tools in this directory

We researched time-series databases from official websites, including pricing pages, plan tables, and product documentation. Rankings reflect each product’s core storage and query capabilities, value for money, and verified features for timestamped data workloads.

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

The full ranking 36 tools, best first

1. 1
   
   Apache IoTDB 9.3

   Best forIoT data with SQL and many ingestion options

   A focused open-source choice for high-volume IoT ingestion, SQL, retention, and scaling.

   • SQL support
   • Retention policies
   • Horizontal scaling

   Open source Our Apache IoTDB verdict → + Compare Visit Apache IoTDBFor vendors Sponsor this spot · #1 · $149/mo →
   9.3/10★★★★★

   Visit Apache IoTDB
2. 2
   
   Amazon Timestream 9.1

   Best forManaged AWS time-series deployments

   A managed AWS option with flexible ingestion, retention, SQL, and InfluxDB support.

   • SQL support
   • Retention policies
   • Horizontal scaling

   Our Amazon Timestream verdict → + Compare Visit siteFor vendors Sponsor this spot · #2 · $99/mo →
   9.1/10★★★★★

   Visit site
3. 3
   
   LindormTSDB 9.0

   Best forManaged compatible metrics and time-series workloads

   A broad compatibility layer for teams managing scalable telemetry and metrics workloads.

   • SQL support
   • Retention policies
   • Horizontal scaling

   Our LindormTSDB verdict → + Compare Visit Alibaba CloudFor vendors Sponsor this spot · #3 · $79/mo →
   9.0/10★★★★☆

   Visit Alibaba Cloud
4. 4
   
   kdb+ 8.9

   Best forHigh-performance financial time-series processing

   A specialized, self-hosted engine for real-time and historical financial analytics.

   • SQL support
   • Retention policies
   • Horizontal scaling

   Pricing on request Our kdb+ verdict → + Compare Visit kdb+For vendors Sponsor this spot · #4 · $69/mo →
   8.9/10★★★★☆

   Visit kdb+
5. 5
   
   Prometheus 8.8

   Best forPrometheus-native monitoring metrics

   A Prometheus-native metrics platform with PromQL, alerting, retention, and federation.

   • Retention policies

   Free plan Our Prometheus verdict → + Compare Visit PrometheusFor vendors Sponsor this spot · #5 · $59/mo →
   8.8/10★★★★☆

   Visit Prometheus
6. 6
   
   Grafana Mimir 8.7

   Best forLarge-scale Prometheus storage

   A self-hosted, PromQL-focused backend for large-scale Prometheus and OpenTelemetry metrics.

   • Retention policies
   • Horizontal scaling

   Open source Our Grafana Mimir verdict → + Compare Visit Grafana Mimir
   8.7/10★★★★☆

   Visit Grafana Mimir
7. 7
   
   InfluxDB 8.6

   Best forBroad, production-ready time-series workloads

   A flexible time-series database with open-source, self-managed, and managed cloud editions.

   • SQL support
   • Retention policies
   • Horizontal scaling

   Free plan · paid from $0.00 · 30-day trial Our InfluxDB verdict → + Compare Visit InfluxDB
   8.6/10★★★★☆

   Visit InfluxDB
8. 8
   
   VictoriaMetrics 8.5

   Best forPrometheus-compatible metrics at scale

   A strong Prometheus-compatible metrics store, but not a SQL-oriented database.

   • Retention policies
   • Horizontal scaling

   Free plan Our VictoriaMetrics verdict → + Compare Try VictoriaMetrics
   8.5/10★★★★☆

   Try VictoriaMetrics
9. 9
   
   QuestDB 8.4

   Best forOpen-source SQL time-series deployments

   A strong fit for teams wanting SQL, flexible ingestion, and self-managed time-series infrastructure.

   • SQL support
   • Retention policies
   • Horizontal scaling

   Free plan Our QuestDB verdict → + Compare Visit QuestDB
   8.4/10★★★★☆

   Visit QuestDB
10. 10
    
    TDengine 8.2

    Best forIndustrial telemetry and high-volume ingestion

    A flexible industrial time-series database with broad ingestion and deployment options.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Free plan · paid from $5,000 Our TDengine verdict → + Compare Visit TDengine
    8.2/10★★★★☆

    Visit TDengine
11. 11
    
    TimescaleDB 7.9

    Best forPostgreSQL teams needing time-series capabilities

    A PostgreSQL-compatible time-series extension for teams needing relational and analytical workloads together.

    • SQL support

    Free plan · paid from $30/mo Our TimescaleDB verdict → + Compare Visit TimescaleDB
    7.9/10★★★★☆

    Visit TimescaleDB
12. 12
    
    TrendMiner 7.8

    Best forIndustrial teams exploring process trends

    Industrial teams can explore process trends, monitor operations, and apply machine-learning analytics.

    Pricing on request Our TrendMiner verdict → + Compare Visit TrendMiner
    7.8/10★★★★☆

    Visit TrendMiner
13. 13
    G
    GreptimeDB 7.7

    Best forObservability data across metrics, logs, and traces

    A flexible observability database that combines SQL, PromQL, and broad ingestion support.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Free plan · paid from $290/mo Our GreptimeDB verdict → + Compare Visit GreptimeDB
    7.7/10★★★★☆

    Visit GreptimeDB
14. 14
    
    DolphinDB 7.6

    Best forComplex streaming and time-series analytics

    A distributed time-series platform for complex streaming, scaling, and analytics workloads.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Free plan Our DolphinDB verdict → + Compare Visit DolphinDB
    7.6/10★★★★☆

    Visit DolphinDB
15. 15
    
    TimechoDB 7.5

    Best forIndustrial IoT with native APIs and MQTT

    A self-hosted industrial IoT database with SQL, native APIs, MQTT, and OPC UA.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Pricing on request Our TimechoDB verdict → + Compare Visit TimechoDB
    7.5/10★★★★☆

    Visit TimechoDB
16. 16
    
    CnosDB 7.4

    Best forCloud-native SQL time-series clusters

    A flexible open-source SQL database for distributed time-series workloads.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Open source Our CnosDB verdict → + Compare Visit CnosDB
    7.4/10★★★★☆

    Visit CnosDB
17. 17
    
    TimeBase 7.3

    Best forReal-time streaming and historical processing

    A focused, scalable choice for streaming time-series workloads and market data.

    • Retention policies
    • Horizontal scaling

    Free plan Our TimeBase verdict → + Compare Visit TimeBase
    7.3/10★★★★☆

    Visit TimeBase
18. 18
    
    openGemini 7.2

    Best forInfluxQL or PromQL open-source deployments

    A flexible open-source choice for InfluxQL and PromQL deployments.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Open source Our openGemini verdict → + Compare Visit openGemini
    7.2/10★★★★☆

    Visit openGemini
19. 19
    
    M3 7.1

    Best forDistributed metrics with PromQL and Graphite

    A self-hosted M3 stack for distributed metrics, PromQL, Graphite, and horizontal scaling.

    • Retention policies
    • Horizontal scaling

    Open source Our M3 verdict → + Compare Visit M3
    7.1/10★★★★☆

    Visit M3
20. 20
    R
    RRDtool 7.0

    Best forLightweight archival monitoring metrics

    A focused self-hosted tool for fixed-size metric archives, consolidation, and graphing.

    • Retention policies

    Free plan Our RRDtool verdict → + Compare Visit RRDtool
    7.0/10★★★★☆

    Visit RRDtool
21. 21
    
    Cortex 6.9

    Best forSelf-hosted multi-tenant Prometheus storage

    A self-hosted, open-source choice for multi-tenant Prometheus metrics at scale.

    • Retention policies
    • Horizontal scaling

    Open source Our Cortex verdict → + Compare Visit Cortex
    6.9/10★★★☆☆

    Visit Cortex
22. 22
    
    Graphite 6.8

    Best forSimple metrics storage and graph rendering

    A self-hosted choice for storing metrics, querying tags, and rendering graphs.

    • Retention policies
    • Horizontal scaling

    Open source Our Graphite verdict → + Compare Visit Graphite
    6.8/10★★★☆☆

    Visit Graphite
23. 23
    O
    OpenTSDB 6.7

    Best forEstablished OpenTSDB-compatible deployments

    An open-source choice for established OpenTSDB-compatible monitoring deployments.

    • Horizontal scaling

    Free plan Our OpenTSDB verdict → + Compare Visit OpenTSDB
    6.7/10★★★☆☆

    Visit OpenTSDB
24. 24
    AT
    Axibase Time Series Database 6.6

    Best forFree SQL time-series monitoring platforms

    A free SQL time-series database with retention, alerting, visualization, and scale-out deployment.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Free plan Our Axibase Time Series Database verdict → + Compare Visit Axibase
    6.6/10★★★☆☆

    Visit Axibase
25. 25
    
    Gnocchi 6.5

    Best forOpenStack metric aggregation

    A strong self-hosted choice for OpenStack metric aggregation and multi-tenant storage.

    • Retention policies
    • Horizontal scaling

    Open source Our Gnocchi verdict → + Compare Visit Gnocchi
    6.5/10★★★☆☆

    Visit Gnocchi
26. 26
    
    KairosDB 6.4

    Best forCassandra-backed distributed metric storage

    A Cassandra-backed metric store for teams that can manage self-hosted infrastructure.

    • Retention policies
    • Horizontal scaling

    Open source Our KairosDB verdict → + Compare Visit KairosDB
    6.4/10★★★☆☆

    Visit KairosDB
27. 27
    
    Warp 10 6.3

    Best forGeo-aware time-series analytics

    A flexible open-source choice for high-cardinality and geospatial time-series workloads.

    • Retention policies
    • Horizontal scaling

    Open source Our Warp 10 verdict → + Compare Visit Warp 10
    6.3/10★★★☆☆

    Visit Warp 10
28. 28
    
    SiriDB 6.2

    Best forCustom-query numeric and log time series

    A focused choice for distributed numeric and log time series with custom querying.

    • Retention policies
    • Horizontal scaling

    Free plan Our SiriDB verdict → + Compare Visit SiriDB
    6.2/10★★★☆☆

    Visit SiriDB
29. 29
    
    LinDB 6.1

    Best forSelf-hosted numeric metrics with rollups

    A self-hosted metrics database with clustering, rollups, and multidimensional queries.

    • SQL support
    • Retention policies
    • Horizontal scaling

    Open source Our LinDB verdict → + Compare Visit LinDB
    6.1/10★★★☆☆

    Visit LinDB
30. 30
    NA
    Netflix Atlas 6.0

    Best forIn-memory dimensional metrics systems

    Open-source, self-hosted metrics storage with tagged data and distributed queries.

    • Retention policies
    • Horizontal scaling

    Open source Our Netflix Atlas verdict → + Compare Visit Netflix Atlas
    6.0/10★★★☆☆

    Visit Netflix Atlas
31. 31
    F
    FiloDB 6.0

    Best forPromQL metrics with Cassandra persistence

    A self-hosted choice for PromQL metrics with Cassandra persistence and Kafka ingestion.

    • Retention policies
    • Horizontal scaling

    Open source Our FiloDB verdict → + Compare Visit FiloDB
    6.0/10★★★☆☆

    Visit FiloDB
32. 32
    B
    BTrDB 6.0

    Best forHigh-precision scientific time series

    A focused open-source choice for nanosecond telemetry and versioned streams.

    • Horizontal scaling

    Open source Our BTrDB verdict → + Compare Visit BTrDB
    6.0/10★★★☆☆

    Visit BTrDB
33. 33
    
    Synnax 6.0

    Best forIndustrial control and telemetry systems

    A control-focused time-series platform for real-time industrial telemetry.

    • Horizontal scaling

    Pricing on request Our Synnax verdict → + Compare Visit Synnax
    6.0/10★★★☆☆

    Visit Synnax
34. 34
    
    OneTick 6.0

    Best forFinancial tick data and market analytics

    A specialized platform for capturing, replaying, analyzing, and querying market tick data.

    • SQL support

    Pricing on request · 30-day trial Our OneTick verdict → + Compare Visit OneTick
    6.0/10★★★☆☆

    Visit OneTick
35. 35
    U
    UnitDB 6.0

    Best forSimple topic-based time-series messaging

    A focused, self-hosted option for topic-based time-series messaging.

    • Retention policies
    • Horizontal scaling

    Open source Our UnitDB verdict → + Compare Visit UnitDB
    6.0/10★★★☆☆

    Visit UnitDB
36. 36
    G
    GroveStreams 6.0

    Best forBusiness-facing temporal dashboards

    A business-focused temporal database with strong dashboards, analytics, and connectors.

    From $499/mo (annual) · 90-day trial Our GroveStreams verdict → + Compare Visit GroveStreams
    6.0/10★★★☆☆

    Visit GroveStreams

No tools match those filters.

Compare at a glance

#	Tool	Free plan	Paid from	Deployment	SQL support	Retention policies	Horizontal scaling	Ingestion methods	Score
1	Apache IoTDB	—	None	Both	Yes	Yes	Yes	INSERT SQL; Java JDBC; Java, C++, Python, and Go native APIs; REST API; MQTT; CSV; TsFile	9.3
2	Amazon Timestream	No	—	Cloud	Yes	Yes	Yes	AWS SDKs, AWS CLI, WriteRecords API, AWS Lambda, AWS IoT Core, Amazon Managed Service for Apache Flink, Amazon Kinesis, Amazon MSK, Telegraf	9.1
3	LindormTSDB	—	—	Cloud	Yes	Yes	Yes	SQL INSERT via JDBC, InfluxDB line protocol, OpenTSDB API, Prometheus remote write	9.0
4	kdb+	—	—	Both	Yes	Yes	Yes	tickerplant, feed handlers, batch mode, TCP/IP, Apache Kafka, Python, Java, C	8.9
5	Prometheus	Yes	None	Self_hosted	No	Yes	No	HTTP pull scraping; Pushgateway; Remote Write; OpenMetrics backfilling	8.8
6	Grafana Mimir	—	None	Self_hosted	No	Yes	Yes	Prometheus remote write; Grafana Agent; Prometheus Agent; OpenTelemetry; Influx; Graphite; Datadog	8.7
7	InfluxDB	Yes	$0/GB usage-based	Both	Yes	Yes	Yes	line protocol, HTTP API, client libraries, Telegraf, influxdb3 CLI	8.6
8	VictoriaMetrics	Yes	—	Both	No	Yes	Yes	Prometheus scraping, Prometheus remote write, Prometheus exposition, InfluxDB line protocol, Graphite plaintext, OpenTSDB, JSON line, CSV, native binary, DataDog, NewRelic, OpenTelemetry, Zabbix Connector	8.5
9	QuestDB	Yes	None	Both	Yes	Yes	Yes	QuestDB Wire Protocol, InfluxDB Line Protocol, REST API, native client libraries, SQL INSERT, Kafka connector, CSV import	8.4
10	TDengine	Yes	$600/mo	Both	Yes	Yes	Yes	SQL, InfluxDB Line Protocol, OpenTSDB Telnet Protocol, OpenTSDB JSON Protocol, MQTT, OPC UA, OPC DA, Kafka, CSV, PI System, MySQL, PostgreSQL, Oracle, MongoDB	8.2
11	TimescaleDB	Yes	$30/GB/mo	—	Yes	—	—	—	7.9
12	TrendMiner	—	—	—	—	—	—	—	7.8
13	GGreptimeDB	Yes	$290/mo	Both	Yes	Yes	Yes	Prometheus Remote Write, OpenTelemetry OTLP/HTTP, Loki Push API, Elasticsearch Bulk API, InfluxDB Line Protocol, MySQL, PostgreSQL, gRPC, HTTP	7.7
14	DolphinDB	Yes	None	Both	Yes	Yes	Yes	Text, binary, JSON, HDF5, Parquet, Arrow, ODBC, APIs, Kafka, MQTT, ZeroMQ, MySQL, MongoDB, HBase, kdb+	7.6
15	TimechoDB	—	—	Both	Yes	Yes	Yes	Java, JDBC, C, C++, C#, Go, Python, Node.js, REST, MQTT, OPC UA, OPC DA, ODBC	7.5
16	CnosDB	—	None	Both	Yes	Yes	Yes	SQL, Line Protocol, OpenTSDB, Elasticsearch bulk, Loki, NDJSON, OpenTelemetry	7.4
17	TimeBase	Yes	—	Both	—	Yes	Yes	Java, C++, C#, Python, Go, REST/WS, Kafka, loaders	7.3
18	openGemini	—	None	Self_hosted	Yes	Yes	Yes	InfluxDB Line Protocol, Apache Arrow Flight, Prometheus remote_write	7.2
19	M3	—	None	Self_hosted	—	Yes	Yes	Prometheus remote write, StatsD, Carbon plaintext, InfluxDB line protocol, JSON	7.1
20	RRRDtool	Yes	None	Self_hosted	—	Yes	—	command line; standard-input pipes; Perl; Python; Ruby; Lua; Tcl	7.0
21	Cortex	—	None	Self_hosted	No	Yes	Yes	Prometheus remote_write; OpenTelemetry Protocol (OTLP)	6.9
22	Graphite	—	None	Self_hosted	—	Yes	Yes	Plaintext, Pickle, AMQP	6.8
23	OOpenTSDB	Yes	None	Self_hosted	No	No	Yes	Telnet API, HTTP API, batch import, Java library	6.7
24	ATAxibase Time Series Database	Yes	None	Both	Yes	Yes	Yes	REST API, network API, CSV, Kafka, JDBC, TCP/UDP, collectors	6.6
25	Gnocchi	—	None	Self_hosted	No	Yes	Yes	HTTP REST API; StatsD; Prometheus Remote Write; InfluxDB line protocol; AMQP 1.0; collectd	6.5
26	KairosDB	—	None	Self_hosted	—	Yes	Yes	REST API, Telnet, Graphite plaintext, Graphite pickle, plugins	6.4
27	Warp 10	—	None	Both	—	Yes	Yes	HTTP POST, WebSocket, UDP, MQTT, Kafka	6.3
28	SiriDB	Yes	None	Both	No	Yes	Yes	HTTP API; socket connections; C/C++; Python; Go; Node.js	6.2
29	LinDB	—	None	Self_hosted	Yes	Yes	Yes	Client libraries; HTTP REST API; InfluxDB Line Protocol	6.1
30	NANetflix Atlas	—	None	Self_hosted	No	Yes	Yes	SpectatorD text protocol, UDP, Unix domain socket, StatsD	6.0
31	FFiloDB	—	None	Self_hosted	No	Yes	Yes	Apache Kafka; Influx Line Protocol	6.0
32	BBTrDB	—	None	Self_hosted	No	—	Yes	Python Stream.insert API; PyArrow table insertion; pandas DataFrame insertion	6.0
33	Synnax	—	—	Both	—	—	Yes	Writer API; historical writes; device drivers	6.0
34	OneTick	No	—	Both	Yes	—	—	Tick data collection	6.0
35	UUnitDB	—	None	Self_hosted	—	Yes	Yes	Put/PutEntry API, batch operations, uTP PUBLISH messages	6.0
36	GGroveStreams	No	$499/mo	—	—	—	—	—	6.0

Head-to-head All 28 comparisons →

• Apache IoTDB vs Amazon Timestream
• Apache IoTDB vs LindormTSDB
• Apache IoTDB vs kdb+
• Apache IoTDB vs Prometheus
• Apache IoTDB vs Grafana Mimir
• Apache IoTDB vs InfluxDB
• Apache IoTDB vs VictoriaMetrics
• Amazon Timestream vs LindormTSDB
• Amazon Timestream vs kdb+

Guides on Time-Series databases

• 7 Best Time-Series Databases for Monitoring Solutions (2026 Guide)Sep 2026
• Understanding Time Series Databases: Data Models, Architecture, and How to Choose OneAug 2026
• Time-Series Databases for Website Monitoring: How to Choose a Metrics BackendSep 2026

How we rank Time-Series databases

Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated 7 Oct 2026 · How we research and update