A free (open source) log monitor / log viewer

  • Files and folders
  • Incomming UDP traffic
  • EventLogs
  • SQL- Server tables
  • Atom and RSS feeds
  • StdOut and StdErr


  • Multiple actions, such as highlight, ignore and sound, based on event content.
  • Supports multiple simultaneous listeners in each session.
  • Supports several simultaneous sessions (MDI).

DOWNLOAD  (Requires the Microsoft .NET Framework 2.0)


I had my son design this when he had a follow-your-parent-to-work-day.

logview4net

US Store

EU Store

Swe Store

I know these badges are mostly made to give a link back to the directory but since sourceforge had a security issue recently you might want to know that logview4net is considered clean by someone else but me.

logview4net antivirus report at download3k.com

Christmas release 2010

… is what the release I made today was going to be. Well here it is, finally.

Please let me know how you use it and if you figure out a listener or other feature you are missing.

The changelog for release 11.02 is:
Fixed: [3048596] logview4net keeps redrawing view, even though it is Paused
Fixed: [2865511] F11 vill now hide/show the menu and the form border.
Fixed: An exception was sometimes thrown when closing a session window because the listener was not closed before the view.
Changed: The string pattern for an action is now a regular expression, not only an exact match.
Fixed: [3094649] tables list not retrieved when db name contains a period
Fixed: [2833781] HighlightMatch highlighting is offset by -1

Now that you’re all excited about it go get it here.

RegEx as action filter

I am nearly done implementing RegEx instead of plain text matching.

I will create a new release when there is enough information on this site to stop redirecting people to jsisoft.com

I intend to make each part of the documentation a post here and use tags to keep some structure to it. That way it will be much easier to comment or contribute on individual parts of the documentation.

It will go past the SourceForge Tracker, but a suggestion in a comment here will get to me a bit faster.

Main Window

New session

This is where you start a new session. See related topics and documents Configure

Clear

Clears the active window.

Pause

Stops the active viewer from showing new events. All new events are cached until the button is pressed again.

Actions

Manages the actions for the current viewer. Actions

Settings

Shows the session configuration dialog. Where you can add and remove listeners and actions from the current session. Configure

Sessions

Enables you to organize the open session windows.

Help

  • About: Will show a dialog with some application data.
  • Documentation: Opens the help file in your default web browser.
  • Check for updates: Will check online if there is a new version of the application available.
  • Register filetype: Associates the .l4n extension with logview4net so that you can doubleclick on a settings file to open the application.

Context menu

There is a context menu in each session window that has options tho quickly create actions based on selected text in the viewer.