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Welcome to Regular-Expressions.info
The Premier website about Regular Expressions

On this site, you can find everything you need to know about regular expressions:

About The Author

Jan GoyvaertsJan Goyvaerts is Chief Software Designer at his own software company Just Great Software. Just Great Software develops and publishes various software packages including PowerGREP, RegexBuddy and EditPad Pro.

PowerGREP is a knowledge worker's Swiss army knife for searching through, filtering and retrieving information from piles of files using regular expressions. RegexBuddy is your perfect assistant for working with regular expressions, making it easy to create, test and save regexes. EditPad Pro is a popular text editor with particularly strong support for regular expressions.

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Feel free to use the form below to send the author your feedback about this site. If you found any errors on the site, feel something is not explained clearly, or if you know of an important regex-related topic not discussed here, please let me know. I try to reply to inquiries as time allows.

Note that this is not a place to request technical support with regular expressions or any regex-related product. If you have a problem with PowerGREP, RegexBuddy or EditPad Pro, please use the appropriate technical support contact addresses.

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PowerGREP 3
PowerGREP PowerGREP is probably the most powerful regex-based text processing tool available today. A knowledge worker's Swiss army knife for searching through, extracting information from, and updating piles of files.
Use regular expressions to search through large numbers of text and binary files, such as source code, correspondence, server or system logs, reference texts, archives, etc. Quickly find the files you are looking for, or extract the information you need. Look through just a handful of files, or thousands of files and folders.
Perform comprehensive text and binary replacement operations for easy maintenance of websites, source code, reports, etc. Preview replacements before modifying files, and stay safe with flexible backup and undo options.
Work with plain text files, Unicode files, binary files, files stored in zip archives, and even MS Word documents, Excel spreadsheets and PDF files. Runs on Windows 98, ME, NT4, 2000, XP & Vista.
More information
Download PowerGREP now