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Useful software for analysing applications logs and traces.

Build status Codacy Badge


  • Java 8 since version 1.4.0
  • Java 6 for verions 1.3.x



  • Loading logs from remote servers using ftp, sftp, ssh, samba and others (supported file systems)
  • Tailing logs from local disk and sftp
  • Parsing logs from clipboard
  • Decompressing "gziped" logs on the fly
  • Parsing custom log patterns
  • Log events searching using regular expression
  • Log filters
  • Pluginable log filters
  • Log highlightings
  • Automatic log highlightings based on string match, regular expression or custom Java code
  • Pluginable log details formatters and colorizers (i.e. SOAP message)
  • Pluginable log highlightings
  • Pluginable log parsers
  • Listening on a socket
  • Adding notes to log event
  • Saving/loading log investigation (with added marks and notes)
  • Integration with IntelliJ IDEA and Eclipse
  • Integration with

Included parsers

Included filters

  • String
  • Regular expression
  • Level
  • Time
  • Highlighted
  • Class
  • Thread
  • Highlighted
  • With note, marked


Wiki page is here


Filter level WARNING or higher and highlighting:

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Powered by

  • Apache commons: net, lang, vfs, httpclient, logging, collections, compress, io
  • log4j
  • VFSJFileChooser
  • Jakarta ORO
  • jCIFS
  • jSch
  • fugue icons
  • MigLayout
  • Trident animation library
  • JGoodies Looks

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