Instrumental
Instrumental is a real-time, high-scale application and server monitoring tool with intelligent alerts, a powerful query language, and free development accounts.
linux windows oxs free metrics commercial metrics monitoring visualization php ruby python net java nodejs
Ngrok
Ngrok provides secure, encrypted tunnels to local services with out the requirement for port forwarding.
linux windows osx bsd solaris open-source free commercial networking
ntopng
'ntopng' provides an easy to understand, intuitive interface with a world of options and features to monitor your network.
linux bsd solaris open-source free commercial networking metrics
NXLog Enterprise and Community Editions
A multi-platform log collection suite to collect, parse, convert and send logs. Integrate with a wide range of products including SIEMs, log analytics dashboards, cloud services, databases, and more.
linux windows bsd solaris osx open-source free commercial logging
Tinfoil Security
Thorough web application security testing, with an extensive API, easy to hook into CI and issue tracking tools.
linux windows osx free commercial ci monitoring security