RegexBuddy is your perfect companion for working with regular expressions. Easily create regular expressions that match exactly what you want. Clearly understand complex regexes written by others. Quickly test any regex on sample strings and files, preventing mistakes on actual data. Debug without guesswork by stepping through the actual matching process. Use the regex with source code snippets automatically adjusted to the particulars of your programming language. Collect and document libraries of regular expressions for future reuse. GREP (search-and-replace) through files and folders. Integrate RegexBuddy with your favorite searching and editing tools for instant access.

Features:

# Regex Tree and Regex Building Blocks
RegexBuddy's regex building blocks make it much easier to define regular expressions. Instead of typing in regex tokens directly, just pick what you want from a descriptive menu. Use RegexBuddy's neatly organized tree of regex tokens to keep track of the pattern you have built so far.
When you need to edit a regular expression written by somebody else, or if you are just curious to understand or study a regex you encountered, copy and paste it into RegexBuddy. RegexBuddy's regex tree will give you a clear analysis of the regular expression. Click on the regular expression, or on the regex tree, to highlight corresponding parts. Collapse part of the tree to get a good overview of complex regular expressions.
Quickly and easily create and edit regular expressions. Mix manipulating RegexBuddy's building blocks and directly editing the regex pattern to suit your own skill and style. Rely on RegexBuddy as you rely on a buddy or coach to assist you.

# Regex Tester and Debugger
Don't risk actual data with untested regexes. Copy and paste sample data into RegexBuddy, or open test files. Step through the search matches in the sample data, and get a detailed report about each match. Or highlight all matches to debug the regex in real time as you edit it.
If a regex doesn't do what you want, debug it by looking at the complete matching process, eliminating all guesswork.

# Develop Efficient Software Quickly with Instant Code Snippets
Save time and code efficiently by using regular expressions when developing applications and scripts. With the proper regex, you can often do in a single line of code, or a few lines of code, what would otherwise require dozens or hundreds.
Rely on RegexBuddy to handle the details, such as which classes and function calls to use, and how to escape special characters. Just select the language you are working with, and the action you want to perform. Test whether a string matches a regex, extract matches from a string, search and replace, split a string, etc. RegexBuddy knows all the common regex actions and how to perform them with a variety of programming languages: C#, VB.NET, VB 6, Delphi, Java, Perl, PHP, JavaScript, VBScript, Python, Ruby and C/C++

# Your Own RegexBuddy Library
Build your own collection of handy regex patterns, and use them whenever you want to. You can easily browse through and instantly search through the regexes you collected. When you found the regex you want, click the Use button.
For common tasks, use one of the many regular expressions you can find in RegexBuddy's library of pre-created regular expressions. You will find readily useful regexes for a wide variety of tasks. For many tasks, there will be several choices of regex patterns, with the differences clearly described.

# Search and Replace through Files and Folders
Quickly search through files and folders with RegexBuddy's built-in GREP tool. Edit many files at once by searching and replacing with regular expressions. RegexBuddy offers all the functionality you'd expect from a basic GREP tool. Built on the same GREP technology as PowerGREP, RegexBuddy outclasses many stand-alone GREP tools.

# Integration with Your Favorite Software
RegexBuddy is designed to be used as a companion to whatever software you use regular expressions with. Such applications include search tools, text editing and processing tools, programming and development tools, etc. Whenever you need to write or edit a regular expression while working with those applications, RegexBuddy pops up to provide assistance, and disappears when you finish editing the regex.
Integrating RegexBuddy with the software makes your workflow much smoother. RegexBuddy integrates with many popular applications for working with regular expressions. If your software does not integrate with RegexBuddy, urge its developers to implement this. Any programmer can easily integrate RegexBuddy with his or her software.