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April 13, 2022 23:24
March 11, 2017 16:56
April 24, 2022 22:18


Useful software for analysing applications logs and traces.


Installation documentation

You can download the latest version from Github releases Download count of latest releese

Overall Downloads on github: All downloads of github releases

Overall Downloads on sourceforge for older versions: Download OtrosLogViewer

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Developing on OtrosLogViewer


  • 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" and "ziped" 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 INFO or higher and highlighting: Filter level INFO or higher and highlighting

Click here to see more screenshots


Screen cap recording

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

Similar software

Project Contributions

Please take a look at the dev-resources folder for development conventions and guidelines.


If you have any questions please write to at

Follow us on Twitter Created with: Intellij IDEA

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