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

49.5k stars8.9k forksApache-2.0last commit Actively maintained
Managed cloud version of InfluxDB for storing, querying and analyzing time-series data. Provides ingestion APIs, the Flux query engine, dashboards, alerting, access controls and integrations for metrics, IoT, and observability workflows.
Open-source OLAP database designed for real-time analytics at scale.

49.5k stars8.9k forksApache-2.0last commit Actively maintained
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.

31.7k stars3.7k forksApache-2.0last commit Actively maintained
Open-source observability pipeline to collect, transform, and route logs and metrics with a single, high-performance binary and programmable transforms.

22.5k stars2.3k forksMPL-2.0last commit Actively maintained
Fast, resource-efficient time series database compatible with Prometheus and Grafana, for scalable monitoring and long-term metrics storage.

17.6k stars1.7k forksApache-2.0last commit Actively maintained
Apache Druid is a real-time analytics (OLAP) database delivering sub-second queries on streaming and batch data with high concurrency at scale.

14k stars3.8k forksApache-2.0last commit Actively maintained
Open-source web app to collect, process, store, and visualize energy, temperature, and other environmental time-series data with dashboards, graphs, and an API.

1.3k stars529 forksAGPL-3.0last commit Actively maintained
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.
920 stars81 forksBSD-4-Clauselast commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 7 of 7 shipped a commit in the last six months. Licences in this list: Apache-2.0, MPL-2.0, AGPL-3.0, BSD-4-Clause. In exchange you take on hosting, backups and updates yourself.
Browse everything in Time-Series Databases.