Checkmk is a monitoring tool of servers, applications, networks, cloud, containers, storage, databases, IoT and more. Checkmk is available as Raw Edition, which is 100% pure open source, and as Enterprise Edition with a lot of additional features.




VictoriaMetrics is described as 'Can be used as long-term storage for Prometheus or for vmagent' and is an app. There are more than 10 alternatives to VictoriaMetrics for a variety of platforms, including Linux, Mac, Windows, Self-Hosted and SaaS apps. The best VictoriaMetrics alternative is Zabbix, which is both free and Open Source. Other great apps like VictoriaMetrics are Netdata, Datadog, Nagios and Splunk.
Checkmk is a monitoring tool of servers, applications, networks, cloud, containers, storage, databases, IoT and more. Checkmk is available as Raw Edition, which is 100% pure open source, and as Enterprise Edition with a lot of additional features.




InfluxDB open source time series database, purpose-built by InfluxData for monitoring metrics and events, provides real-time visibility into stacks, sensors, and systems. Use InfluxDB to capture, analyze, and store millions of points per second, meet demanding SLA’s, and chart a...

Hydra is an open source, column-oriented Postgres. Query billions of rows instantly, no code changes.



Levitate is a mission-critical time series database that allows control over queries and storage to build a cost-effective and toil-free foundation for operational readiness. It's built for high query performance, high availability, and low latency writing.




Citus gives you the Postgres you love, plus the superpower of distributed tables. 100% open source. Now with schema-based sharding in Citus 12.
An open-source database built for analyzing time-series data with the power and convenience of SQL — on premise, at the edge or in the cloud.
OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase. OpenTSDB was written to address a common need: store, index and serve metrics collected from computer systems (network gear, operating systems, applications) at a large scale, and make this...
ReductStore: A high-performance time-series object store for edge AI applications. Client SDKs: For Python, JavaScript, C++, Rust, and cURL. Web Console: Integrated interface for data management. CLI Client: A command line client for managing ReductStore.
Supports high cardinality alerting and monitoring