Logmatic.io is a SaaS log management platform empowering users to troubleshoot and monitor operational problems better and faster.

Nagios Log Server is centralized log management, monitoring & analysis software. Quickly & easily manage, monitor and analyze log data.

Scalyr is a server log monitoring tool.

NetCrunch is a Windows Server–based network monitoring tool that boasts high performance and impressive scalability even in a single-server deployment.

Rollbar provides real-time error alerting & debugging tools for developers. Ruby, Python, PHP, Node.js, JavaScript, Android, iOS & more languages supported.