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I'm a developer, and I generate big log files. I've tried several log viewer applications (free or not), so far mtail I like the most. But, it lacks features.

I would like from my log viewer to:

  • handle files > than 10MB
  • filtering
  • highlight search queries
  • behave like a log viewer - do all of these in real time, and fast

The question is:

Which log viewer would you recommend on Windows?

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closed as not constructive by slhck Oct 2 '12 at 21:06

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try ReflectInsight. I handles everything the requester asked. DISCLAIMER: I'm one of the developers for ReflectInsight. insightextensions.codeplex.com –  code5 Nov 4 '13 at 19:27

7 Answers 7

up vote 26 down vote accepted

BareTail, which has a free version, works pretty well for us for years.


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I've seen this tool used in many places. –  Mercer Traieste Jul 19 '09 at 16:32
BareTail is awesome. We use this all the time –  pavsaund Aug 8 '09 at 7:21
Found this answer by a search. Very cool product to recommend. –  T. Stone Dec 8 '09 at 21:02
I also use this too, but running it on server 2008 R2 causes somekind of memory-leak with wmiprvse.exe –  maxlego Mar 27 '12 at 11:19

My new favorite log viewer is glogg. It makes finding stuff in noisy log files very easy. It could use a few more features but does 95% of everything I need it to do, it is open source, written in C++ using Qt and runs on Linux/Windows/Mac. Give it a try.

Glogg screenshot on Windows

From the glogg description page:

glogg enables you to use regular expressions to search for interesting events in your log files. It presents a results window which, together with complex regular expressions allows easy isolation of the meaningful lines amongst the noise.

glogg has been primarily developed to help spot and understand problems in huge logs generated by embedded systems. It can be equally useful to a sysadmin digging through logs from databases or web servers.

The main design goals for glogg are:

  • it should be fast
  • it does not have any limit on the size of files it can handle
  • it provides a clear view of the matches even in heavily cluttered files.

If you think it does not do that, it is a bug and it should be fixed!

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No UNICODE / UTF8 support –  Yurik Dec 6 '12 at 11:00

Log Expert http://logexpert.codeplex.com/


  • highlighting (regex, etc.)
  • filtering (regex, etc.)
  • custom columnizer (columnizer parses lines into columns)
  • multi-file support
  • + some common features

Log Expert screenshot

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It crashes all the time on my machine (Windows 7 x64) –  payala Feb 20 '13 at 20:17

Take a look a logview4net it's free and has a different take on viewing log files.

A free (open source) log monitor / log viewer for:

* Files and folders
* Incomming UDP traffic
* EventLogs
* SQL- Server tables
* Atom and RSS feeds
* StdOut and StdErr
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I would recommend logFaces, it has fantastic real-time log viewer based on eclipse-style design.

enter image description here

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I wrote my own little logviewer just because of that, its really raw at the moment, but would be an ok starting point if anyone wanted to extend it.

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Installing MSYS gives you a close version to a Unix environment on Windows, you get all the main binaries. Using these tools you can achieve all the functionality you request using standard commands like tail, grep, less, etc.

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