RegexPro is a free and simple tool which allows you to match regular expressions within a string of text. Highlighted results help you analyze your patterns, and simple expressions may be gradually built into larger or more complex ones.

Features:
1. Perform exact matches or search for all matches within a string of text
2. Choose from several regex flavors/languages: ECMAScript, BRE, ERE, grep, egrep, and awk
3. Highlighted results, including submatches and their capture groups
4. Saves recently used expressions automatically
5. 64-bit Windows XP/Vista/7 compatible

The license of this software is Freeware, you can free download and free use this search tool software.