Easily test and build regular expressions with real-time matching and helpful explanations.
Input your text and regex pattern to see matches highlighted instantly. Use different flags and test replacements.
Our Regex Tester & Builder allows you to input text and a regular expression pattern. The tool will highlight all occurrences in your text that match the pattern in real-time. You can also use common flags like 'g' (global), 'i' (case-insensitive), and 'm' (multiline) to modify the search behavior. Additionally, you can provide replacement text to see how your string would be modified using the regex replace functionality. This is an indispensable tool for developers, data analysts, and anyone working with text patterns.
Regular expressions are powerful sequences of characters that define a search pattern. They are widely used in programming, text processing, and data validation. Our tool simplifies the process of writing and testing these patterns, helping you build accurate and efficient regex.