Syslog Message Builder

Build and preview syslog messages in RFC 5424/3164 format. Specify facility, severity, hostname and more to generate accurate syslog messages

Presets

RFC Format

Facility

Severity

PRI = 14(1 x 8 + 6 = 14)

Hostname

App-Name

PID

Structured Data(e.g. [exampleSDID@32473 iut="3" eventSource="Application"])

Message

Generated MessageRFC 5424

<14>1 2026-03-30T10:38:17.828Z myhost myapp 1234 - - Application started successfully

Message Structure

Field	Value
PRI	14
Facility	1 (user)
Severity	6 (Informational)
Version	1
Hostname	myhost
App-Name	myapp
PID	1234
Structured Data	-
Message	Application started successfully