SyslogWatch receives RFC 3164 and RFC 5424 syslog over UDP and TCP and shows it in one filterable window on a machine you control. Point routers, firewalls, switches and NAS boxes at it. Nothing goes to a cloud service and there is no account to create.
It binds port 1514, so it starts without administrator rights. Filter by severity, search live and archived events, set keyword alerts.
Free tier: unlimited hosts, 3 alert rules. Enterprise adds on-device anomaly detection.
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Maker
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I built SyslogWatch because testing and monitoring syslog traffic on a Mac often means using terminal commands or heavyweight cross-platform tools. I wanted a native, focused dashboard that makes incoming UDP and TCP events immediately visible while keeping log data local by default. The product evolved through real App Store testing with RFC 3164 and RFC 5424 messages, severity filtering, live search, alert rules, window recovery, and privacy-focused local storage.
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Finally a syslog viewer that feels right on macOS, the live filter by severity is snappy and the keyword alerts actually caught something I would have missed during a deploy.
Finally a syslog viewer that feels right on macOS, the live filter by severity is snappy and the keyword alerts actually caught something I would have missed during a deploy.