Best Self-hosted Time-Series Databases tools in 2026

8 self-hosted open source alternatives in this category

Netdata

Real-time, per‑second full‑stack monitoring and observability

Open-source, agent-based monitoring platform delivering per-second metrics, edge ML anomaly detection, tiered time-series storage and centralized cloud UI.

Alternative to:

Datadog Cloud Monitoring+16

Prometheus

Monitoring system and time-series database for metrics and alerting

62.9k

10.2k

Last commit: 9h ago

Prometheus is an open-source monitoring and time-series database for collecting metrics, querying with PromQL, and alerting on system and application health.

Alternative to:

Datadog Cloud Monitoring+17

ClickHouse

Fast open-source columnar database for real-time analytics.

46k

8.1k

Last commit: 7h ago

Open-source OLAP database designed for real-time analytics at scale.

Alternative to:

ClickHouse Cloud+11

InfluxDB

Time-series database for metrics, events, and real-time analytics

31.3k

3.7k

Last commit: 22h ago

InfluxDB is an open source time-series database for high-ingest metrics and event data, enabling fast queries for monitoring, dashboards, and real-time analytics.

Alternative to:

InfluxDB Cloud+5

VictoriaMetrics

High-performance time series database for monitoring and observability

16.4k

1.6k

Last commit: 10h ago

Fast, resource-efficient time series database compatible with Prometheus and Grafana, for scalable monitoring and long-term metrics storage.

Alternative to:

Grafana Cloud+9

Apache Druid

High-performance real-time analytics database for OLAP workloads

13.9k

3.8k

Last commit: 15h ago

Apache Druid is a real-time analytics (OLAP) database delivering sub-second queries on streaming and batch data with high concurrency at scale.

Alternative to:

Imply+10

Speedtest Tracker

Self-hosted internet performance and uptime monitoring tool

5.3k

211

Last commit: 5d ago

Laravel-based app that schedules Ookla Speedtest checks, records download/upload/ping/packet-loss metrics, visualizes historical performance, and sends alerts.

Alternative to:

Speedtest by Ookla+3

Fitbit Fetch Script and InfluxDB Grafana Integration

Fetch Fitbit API data into InfluxDB and visualize it with Grafana

828

Last commit: 3d ago

Python service that pulls Fitbit health metrics via the Fitbit Web API, stores them in InfluxDB, and provides Grafana dashboards for long-term trend visualization.

Alternative to:

Grafana Cloud+9