Regular expressions

19 regular expressions tools in Code & Dev. Each one runs in this tab, so nothing you paste in leaves the machine.

All regular expressions tools

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Email Regex
Create email validation patterns at basic, standard
Regex Flags Tester
Compare how different regex flags (g, i, m, s, u
Credit Card Regex
Create validation patterns for Visa, Mastercard, Amex, Discover
Phone Regex
Create validation patterns for US, UK, international
Date Regex
Create date validation patterns for ISO 8601, US, EU, UK
Regex Explainer
Break down any regular expression into plain English descriptions
Password Regex
Create customizable password validation patterns with uppercase
IP Address Regex
Create validation patterns for IPv4, IPv6, and CIDR notation
Regex Groups
Extract named and numbered capture groups from regex matches
Glob to Regex
Convert glob wildcard patterns to equivalent regular expressions
URL Regex
Create URL matching patterns for HTTP, HTTPS, FTP
Regex to Glob
Convert simple regular expression patterns to glob wildcard
Regex Split
Split text into parts using regular expression delimiters
Regex Extract
Find and extract all pattern matches from text
Regex Optimizer
Suggest shorter, more readable regular expression alternatives
Common Regex Patterns
Browse common regular expression patterns for email, URL, IP, phone
Regex Tester
Test regular expressions with live match highlighting and position
Regex Escape
Escape special regex characters in strings for safe literal matching
Regex Replace
Search text with regular expressions and replace matches with custom patterns, capture groups included