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.
ElasticHQ - Tool for ElasticSearch management and monitoring.
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
elasticsearch-gui - AngularJS Client for ElasticSearch as a plugin.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
LogFusion - Log fusion is a software that helps you to display and monitor your log files in real-time by relying on this lightweight application that features a massive range of useful function.