.NET Regular Expression Designer

Learn, develop and test Regular Expressions for the .NET platform.


The .NET Regular Expression Designer is a free download for Windows that helps you learn, develop and test regular expressions.


Integrated Help

Get help with the basic elements of regular expressions such as character classes and grouping constructs.

Syntax Highlighting

Customisable syntax highlighting that colours all the major elements of your regular expressions.

Formatted Results

See your regular expression results as a structured tree of groups and captures.

Regex Library

Save your favourite regex expressions within an integrated library for future use.

Generate Code

Generate C#, VB.NET or JavaScript code for your regex.


System Requirements

  • Windows 8 or later
  • 4 GB RAM
  • 50 MB Hard Drive Space
  • .NET 4.7.2 (Setup can download this for you)