The best free alternative to Zabbix is Netdata. If that doesn't suit you, our users have ranked more than 100 alternatives to Zabbix and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Zabbix are Nagios, Better Stack, Beszel and Paessler PRTG Network Monitor.
Netdata collects metrics per second and presents them in beautiful low-latency dashboards. It is designed to run on all of your physical and virtual servers, cloud deployments, Kubernetes clusters, and edge/IoT devices, to monitor your systems, containers, and applications.
Nagios is a powerful monitoring system licensed under Nagios Enterprises that helps organizations identify and resolve IT infrastructure issues.
AI-driven SRE platform offering real-time infrastructure monitoring, incident management, log analytics, traces, error tracking, metrics, real user monitoring, status pages, and a warehouse, with full data ingestion, centralized dashboard, custom alerts, and reduced costs.
Beszel is a lightweight server monitoring platform that includes Docker statistics, historical data, and alert functions.
Comprehensive monitoring solution with over 200 sensor types, user-friendly interface, and powerful capabilities such as traffic analysis, failover clustering, and remote probes. Offers email and SMS alerts, supports SNMP and WMI, provides high-availability features and detailed reporting.
Free IT help desk software delivers network mapping, user ticket tracking, PC inventory management, contract and asset scanning, remote process control, automated cloud-based reporting, project management, and task prioritization for small and medium businesses.
LibreNMS is an autodiscovering PHP/MySQL based network monitoring system forked from Observium. LibreNMS aims to be easy to use, painless to deploy, and support monitoring of a wide range of devices. Observium's license changed to a modified QPL license in May 2012, and...
Icinga is a fork of Nagios and is backward compatible. So, Nagios configurations, plugins and addons can all be used with Icinga. Though Icinga retains all the existing features of its predecessor, it builds on them to add many long awaited patches and features requested by the...
Monitorix is a system monitoring tool designed to monitor as many services and system resources as possible. Due to its simplicity and small size it can also be used on embedded devices.
Unify your cloud-native monitoring with zero-code eBPF, advanced profiling, and 10x storage efficiency.
NetXMS is an enterprise grade multi-platform open source network management and monitoring system. It provides comprehensive event management, performance monitoring, alerting, reporting and graphing for all layers of IT infrastructure — from network devices to business...
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Zabbix is a fully free and open source monitoring solution. Netdata is a commercial solution with a closed-source web service with a free tier and an open source agent to send data to the web service.
Netdata isn't a fully open source solution.