Darek Kay's picture Darek Kay

Turn Notepad++ into a log file analyzer

Log file syntax highlighting in Notepad++

It's always a pain to analyze log files using a text editor. The good news is that Notepad++ supports user-defined languages, so I wrote a custom syntax highlighter. This turns Notepad++ into a basic log viewer. I've kept the highlighting to the minimum: green numbers, grey strings and custom colors for different log levels. Those colors are a huge improvement while scrolling through tons of black text. Here's how you enable it:

  1. Download this XML file
  2. Import the file: LanguageDefine your language...Import
  3. Restart the application.

Files with .log extension automatically use this syntax highlighter, but you can always activate it manually: LanguageLog file.

This configuration was written for Java logging (Log4J, Logback etc.), but it can be customized to work with other log patterns. Use the same dialog to adjust the colors and/or keywords, no XML hacking needed.

See also my other syntax files for Notepad++.

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Turn Notepad++ into a log file analyzer