OpenNMS is an open-source network monitoring platform that helps you visualize and monitor everything on your local and distributed networks.




DeepFlow is described as 'Unify your cloud-native monitoring with zero-code eBPF, advanced profiling, and 10x storage efficiency' and is an app. There are more than 50 alternatives to DeepFlow for a variety of platforms, including Linux, Web-based, Windows, Self-Hosted and Mac apps. The best DeepFlow alternative is Grafana, which is both free and Open Source. Other great apps like DeepFlow are Zabbix, TrafficMonitor, Better Stack and NetWorx.
OpenNMS is an open-source network monitoring platform that helps you visualize and monitor everything on your local and distributed networks.




Sysdig is open source, system-level exploration: capture system state and activity from a running Linux instance, then save, filter and analyze. Think of it as strace + tcpdump + lsof + awesome sauce.
Cacti is a complete frontend to RRDTool, it stores all of the necessary information to create graphs and populate them with data in a MySQL database. The frontend is completely PHP driven. Along with being able to maintain graphs, data sources, and Round Robin archives in a...




NTop is a hybrid layer 2 / layer 3 network monitor, that is by default it uses the layer 2 Media Access Control (MAC) addresses AND the layer 3 tcp/ip addresses. ntop is capable of associating the two, so that ip and non-ip traffic (e.g.


Observium is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more.




Delivers continuous monitoring of network devices, automated topology mapping, SNMP management with custom thresholds, real-time alerts, secure remote access, power cycling, asset documentation, interactive network visualization, flexible automation, and workflow creation.




Serial Studio is an open-source, cross-platform telemetry dashboard and real-time data visualization tool. It supports input from serial ports, Bluetooth Low Energy (BLE), and TCP/UDP sockets. It's ideal for embedded devices, external tools, and network services.


Netweak is a delightful, minimalist monitoring platform that gives you insights on performance and availability for your linux servers & websites.




SaaS monitoring tool for linux servers and websites. Think up-time robot but with more features. You can monitor your linux hosts, windows hosts under development.


Open source observability platform. SigNoz helps developers find issues in their deployed applications & solve them quickly.




OpsiMate is an open source platform that provides comprehensive infrastructure monitoring, automation, and management tools. Transform complexity into clarity with our unified, intelligent platform.



A cloud-native observability platform built specifically for logs, metrics, traces, analytics, RUM (real user monitoring — performance, errors, session replay) designed to work at petabyte scale.
