đ§ââī¸ Regex Wizard
Build regular expressions step-by-step without needing to know regex syntax. Choose from common patterns or build custom ones with an interactive guide.
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âšī¸ What is Regular Expression (Regex)?
A regular expression (regex) is a pattern used to match text. It's like a powerful search tool that can:
- Find patterns: Email addresses, phone numbers, dates, etc.
- Validate input: Check if text matches a specific format
- Extract data: Pull specific information from larger text
- Replace text: Find and replace with pattern matching
Common Use Cases:
- Email validation: Verify email addresses are properly formatted
- Phone extraction: Find all phone numbers in a document
- Data cleaning: Extract specific data from messy text
- Form validation: Ensure user input matches expected format
Quick Regex Reference:
\d- Any digit (0-9)\w- Any word character (letter, digit, underscore)\s- Any whitespace (space, tab, newline)+- One or more of the previous character*- Zero or more of the previous character?- Zero or one of the previous character (optional)[abc]- Any character in the brackets (a, b, or c)[0-9]- Any digit from 0 to 9.- Any single character
Tip: Start with a preset pattern and modify it, or build a custom pattern step-by-step. Test your pattern against real text to see what it matches!