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 live data. Use the regex with auto-generated code snippets in C#, VB, Java, Delphi, Perl, PHP, Python, JavaScript, etc. Collect libraries of regular expressions for future use. Detailed tutorial.

Quickly search through large numbers of files on your PC or network, including text and binary files, compressed archives, MS Word, Excel and PDF, etc. Find the information you want with powerful text patterns (regular expressions) specifying the form of what you want, instead of literal text. Search and replace with one or many regular expressions to maintain web sites, source code, reports, etc. Extract statistics and knowledge from logs files.