Self-hosted, lightweight server and website monitoring and O&M tool
A suite of Monitoring Plugins (formerly known as nagios-plugins)
Hard drive monitoring, disk health, and temperature monitoring tool
Free Windows, Mac and Linux cleaner, scanner, and more
Cross-platform lib for process and system monitoring in Python
Open-source systems performance monitor
Disk Inspection and Monitoring
pg_activity is a top like application for PostgreSQL server activity
Visibility into servers, applications, and infrastructure
A system monitoring tool that exposes system metrics
All-in-one Polyglot Observability stack with ClickHouse storage
An eye on your system
Monitorix is a free, open source, lightweight system monitoring tool
Zeek is a powerful network analysis framework
SQL operating system instrumentation and monitoring framework
a pluggable app that runs a full check on the deployment
Light-weight system monitor for X
Powerful system task manager
The Cloud-Native API Gateway
An in-memory file system for Java 8+
Portable Linux engineer toolkit for recovery, repair & data rescue
Hardware monitoring and system information tool with GUI for Linux.
A desktop utility for real-time hardware monitoring and diagnostics.
Zabbix extension that reports various HDD status using various tools