Regex Tester

A Regex (Regular Expression) Tester is a tool that helps you write, test, and debug regular expressions. Regular expressions are powerful patterns used to match, search, and manipulate text strings in programming and text processing.

Regular expressions are used for:

• Text Validation: Checking if input matches a specific format (emails, phone numbers, etc.)
• Text Search: Finding specific patterns within large text documents
• Text Replacement: Finding and replacing text patterns in bulk
• Data Extraction: Parsing structured data from unstructured text

Regex patterns use special characters and syntax to define search patterns. For example, `\d+` matches one or more digits, `[a-z]+` matches lowercase letters, and `^[a-zA-Z0-9]+$` matches alphanumeric strings. Regex testers let you experiment with patterns in real-time, see matches instantly, and debug complex expressions before using them in your code.