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grepWin: Regular expression search and replace for Windows

Go to the download page to download grepWin right now.

Windows XP not supported

grepWin requires Windows 7 SP1 or later. It won't work on Windows XP or Vista!

grepWin is a simple search and replace tool which can use regular expressions to do its job. This allows to do much more powerful searches and replaces.

In case you're not familiar with regular expressions, we have a very short regular expression tutorial for you.

grepWin adds an entry to the shell context menu to easily search selected folders.

Right click

Once started, grepWin allows you to customize the search or replace in many ways.


For example, you can (and maybe you should) limit the search to certain file sizes, file types, etc.

Since regular expressions can sometimes get complicated, grepWin allows you to add your most used expressions to a presets list.

Add preset

Once you've added some presets, you can easily retrieve them again from the presets dialog.


After a successful search or replace, the matching files are listed at the bottom of the dialog. The file list behaves a lot like the common Windows explorer. That means a double-click will open the file, and a right-click will show you the default shell menu for that file.

Shell menu

If you want to report a bug or request a feature, use our issue tracker to file a new issue or add a comment to an existing one. Make sure to search all issues, not just the open issues at the time.

Command line parameters

The command line parameters are listed on a separate page.

Visual Studio integration

You can also integrate grepWin into Visual Studio, the wiki explains how.

Source code

grepWin is licensed under the GPL. If you would like to make changes to grepWin, get the source code here.