Open Source Windows Grep



dnGREP is a new Open Source GREP utility written in .NET 2.0 (testing so far only on Windows).

A GREP is "a program which selects lines in a file which match a given pattern". dnGREP was designed to provide a fast and stable regular-expression based search/replace functionality to Windows users.

This utility currently supports:

  • Shell integration (ability to search from explorer)
  • Plain text/regex search (including case-insensitive search)
  • Multiline search (ability to search and replace multiple lines)
  • Undo functionality
  • Preview of search results
  • Optional integration with text editor (like notepad++)

dnGREP (current version 0.9.0) can be downloaded from

Suggestions and requests for new features are always welcome and appreciated.

Works with Windows XP, Windows 2000, and Windows Vista

Related Product:


Please rate this article: 

Your rating: None
Average: 4.3 (7 votes)


Evaluating dngGrep now a days and I'm also using AstroGrep.

dnGrep got a very good previewing capability with some syntax highlighting and good detailed search pane.

AstroGrep is just 1 point down due to some less detailed search results pane and no previewing utility.

Both can launch external text editor (like Notepad++) while passing parameters to that...

However, AstroGrep got a +1 point of being faster than dnGrep...