The 0.3.1 version of RegExr is provided as a free download on our website. The most popular versions among RegExr users are 0.3 and 0.2. This free program is a product of gskinner, inc. Our built-in antivirus scanned this download and rated it as virus free. RegExr belongs to Office Tools. This PC program works fine with 32-bit versions of Windows XP/7/8. RegExr.exe is the common file name to indicate the RegExr installer.
From the developer:
RegExr Desktop is a tool for learning, editing, and testing regular expressions (RegEx or RegExp for short) on Mac OSX, Windows, and Linux. It provides a simple interface to enter RegEx expressions, and visualize matches in real-time editable source text.
You may want to check out more software, such as AceText, Multi Clipboard or PasteItIn, which might be similar to RegExr.