Sublime Web Inspector - Sublime Web Inspector enables users to debug Javascript right in the Sublime Text editor.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
netquery - netquery is the system introspection tool.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
FusionDebug - FusionDebug an interactive step debugger for ColdFusion Markup Language.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.