Chainsaw (log file viewer) – the log4j and also Log4perl graphical log analyser

• Chainsaw (log file viewer) - Wikipedia, the free encyclopedia
• Apache Logging Services Chainsaw v2 Home [link]

Yes, it is compatible with Log::Log4perl, cf. "Can I use Log::Log4perl with log4j's graphical Log Analyzer Chainsaw?" [link] in Log::Log4perl::FAQ.