Splunk!

Logmatic.io is an Operations Data Platform for Log and Machine events. We help companies improve their software and business performance by leveraging their machine data.

logstash is a tool for managing events and logs. You can use it to collect logs, parse them, and store them for later use (like, for searching). Speaking of searching, logstash comes with a web interface for searching and drilling into all of your logs.

Graylog is an open source syslog implementation that stores your logs in Elasticsearch. It consists of a server and web interface written in Java that accepts your syslog messages via TCP or UDP (or GELF messages) and stores it in the database.

Log aggregation, search, analysis, dashboards & alerts all in one tool. Diagnose server issues faster and on one screen.

Grafana provides a powerful and elegant way to create, explore, and share dashboards and data with your team and the world.

Logsene is an enterprise-class log management and analytics solution, available in the Cloud or On Premise. Logsene delivers critical operational and business insights from data generated by applications, we sites, servers, networks, mobile devices, sensors, etc. Logsene searches and visualizes the collected data to let you monitor and analyze everything from application and server logs that matter to Engineers and Operations, to Key Performance Indicators that matter to business. In addition, Logsene seamlessly integrates with SPM Performance Monitoring to enable correlation across performance metrics, alerts, events, and logs and provide a single pane of glass across the complete enterprise infrastructure. »

Loom Systems delivers an advanced operational analytics platform, that automatically analyze logs and metrics to predict and prevent problems in your digital business. Loom stands alone in the industry as an AI analytics platform requiring no prior math knowledge from operators, leveraging your existing staff to succeed in the digital era.

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.

AlienVault Open Source SIEM (OSSIM) is a complete Security Management solution that detects and profiles attacks, and provides a comprehensive, intelligent Security Management platform and toolset.

Fluentd is a fully free and open-source log management tool that simplifies your data collection and storage pipeline. It eliminates the need to maintain a set of ad-hoc scripts.

Real time, actionable insights into your log analytics data with ELK as a service.

With New Relic Insights you can…

XpoLog is a log analysis and management platform with super fast index and search, problems analysis and reports for mission critical operations.