Apache Kafka
Apache Software Foundation · Messaging & queues
Distributed event streaming platform with durable, partitioned, replayable logs, Kafka Connect connectors and Kafka Streams processing
Apache-2.0Open sourceFreeSelf-hostedNov 2, 2026
Directory
4 tools
Results
In-depth entry
ClickHouse
ClickHouse, Inc. · Analytical engines & OLAP
Open-source columnar OLAP database server for fast aggregations over billions of rows, with MergeTree storage, SQL and a managed ClickHouse Cloud
Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026
Langfuse
Langfuse (part of ClickHouse, Inc. since January 2026) · Prompting, evaluation & observability
Open-source LLM observability and evaluation platform: tracing, LLM-as-judge and human evals, prompt management, datasets and cost dashboards, self-hostable or as Langfuse Cloud
MITOpen sourceFreemiumSelf-hostedNov 2, 2026
PM2
Keymetrics (Unitech) · Infrastructure & provisioning
Production process manager for Node.js and other long-running programs with cluster mode, log handling, restart policies and boot-time startup scripts
AGPL-3.0-onlyOpen sourceFreeLocalSelf-hostedNov 2, 2026
Page 1 of 1
Share this view: /tools?use=monitor-services&source=open-source&depth=deep