Regex Formula Library
Browse ready-to-use formula templates for Excel, Google Sheets, SQL, and regex. Each formula includes a step-by-step breakdown, edge-case warnings, and real-world examples.
AI-generated regex patterns with validation. Extract emails, numbers, URLs, and more from unstructured text.
Extract Email Addresses
A battle-tested regex pattern for finding email addresses in unstructured text. Handles common formats and edge cases.
Extract Numbers From Text
Pull numbers out of messy text data — prices, measurements, IDs, or any numeric value embedded in strings.
IP Address Regex
Match and validate IPv4 addresses in text. From quick-and-dirty patterns to strict 0-255 range validation.
URL Extraction Regex
Find and extract URLs from unstructured text. Match full URLs, domains, or specific URL components with tested patterns.
Password Validation Regex
Enforce password strength rules with regex. Minimum length, character requirements, and common patterns for registration forms.
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