SharePoint ULS Viewer

What’s SharePoint ULS Viewer?

SharePoint ULS Viewer is a Windows application that provides a simplified view of ULS log files in SharePoint 2010/2013/2016. It supports filtering, highlighting, sorting, append, and more features.

SharePoint ULS Viewer


Why you need to use SharePoint ULS Viewer?

By default, the SharePoint trace logs are opened using Notepad, that actually difficult to read and traced!

Using SharePoint ULS viewer to Open SharePoint Logs

The SharePoint ULS Viewer will help you to read and review your SharePoint issues carefully and quickly!

Read SharePoint Logs using SharePoint ULS Viewer

Note: the SharePoint ULS Viewer doesn’t read the Event Viewer Log


SharePoint ULS Viewer Features

Filtering In SharePoint ULS Viewer

You can easily filter your logs by the following fields

Filtering by Fields In SharePoint ULS Viewer

You can also filter by the log entry priority

  • High.
  • Medium.
  • Verbose.

Filtering In SharePoint ULS Viewer

Append from SharePoint Log File in SharePoint ULS Viewer

On the current retrieved log file, you can append another log files.

Append File In SharePoint ULS Viewer

Formatting Rule in SharePoint ULS Viewer

You can easily format the rules to be easily readable

Manage formatting rule in SharePoint ULS Viewer

Manage Formatting in SharePoint ULS Viewer

Also, you can change the displayed columns and clear formatting as you prefer.

Manage Notifications in SharePoint ULS Viewer

Notification filter in SharePoint ULS viewer

Edit Menu in SharePoint ULS Viewer

Plus the above features, you can find the common Edit functionalities in Edit menu

bookmark In SharePoint ULS Viewer


How to read multiple SharePoint farm logs using SharePoint ULS Viewer?

You should first merge the SharePoint logs files using PowerShell,

 Merge-SPLogFile -Path "C:\FarmMergedLog.log" -Overwrite 

merge the SharePoint logs files using PowerShell

Then open the merged file using SharePoint ULS Viewer.

Open file in SharePoint ULS viewer


Where’s the SharePoint Log Path?

The default SharePoint Trace logs path is

Trac Log Path for SharePoint 2007

%COMMONPROGRAMFILES%\Microsoft Shared\Web Server Extensions\12\Logs

Trac Log Path for SharePoint 2010 
%COMMONPROGRAMFILES%\Microsoft Shared\Web Server Extensions\14\Logs
Trac Log Path for SharePoint 2013/ 2016
%COMMONPROGRAMFILES%\Microsoft Shared\Web Server Extensions\15\Logs

How to change the SharePoint Log Path?

It’s possible to change the default Trace log path from Central Administration by following.

  • Open Central Administration > Monitoring > Reporting > Configure Diagnostic Logs.

SharePoint Diagnostic logging

  • Beside Trace Log, you can change the Trace log path, Number of days to store log files and Restrict Trace Log disk space usage.

SharePoint Trace Log

Note: The location you specify must exist on all servers in the farm.


Download ULS Viewer


Applies To
  • SharePoint 2016.
  • SharePoint 2013.
  • SharePoint 2010.
See also
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