NXLog Community EditionSIEM
NXLog is a log collection tool. When browsing websites or using online applications, messages are issued to a console log (errors, alerts, messages and event tracking items). NXLog collects these logged messages and tells users if anything suspicious happened during their visit.
LOGalyze is an open source log management and network monitoring platform. The tool collects event logs from Windows or Linux networks. LOGalyze classifies logs by source host, severity, and type. This makes analyzing logs for threats or vulnerabilities more efficient.
Graylog Open SourceSIEM
Graylog collects, enhances, stores, and analyzes log data from websites and web applications. This information is reviewed to check error log messages and event tracking messages for security issues.