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.




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, Self-Hosted, Windows and Mac apps. The best DeepFlow alternative is Grafana, which is both free and Open Source. Other great apps like DeepFlow are TrafficMonitor, Zabbix, Better Stack and Netdata.
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.








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.
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.




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.


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.


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




Kiwi Syslog - Syslog Server for Windows. Receives logs, displays, forwards, archives and e-mails Syslog messages from routers. Download free version today! Works with any syslog enabled device.




Hosted log management for servers, apps, and cloud services. Papertrail aggregates syslog, Text log files, Apache, MySQL, cloud hosting, Ruby on Rails, Windows events, Tomcat, Heroku apps, and routers & firewalls.


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



