Regular Expressions 101

Please wait while the app is loading...

Regular Expressions 101

@regex101 Donate Sponsor Contact Bug Reports & Feedback Wiki What's new?

Save & Share

Save Regex
ctrl+s
Go to library entry

FlavorNeed help selecting flavor?

PCRE2 (PHP >=7.3)
PCRE (PHP <7.3)
ECMAScript (JavaScript)
Python
Golang
Java 8
.NET (C#)

Function

Match
Substitution
List
Unit Tests

Tools

Code Generator

Regular Expression
Regex Versions
No Match

msgui

Shortcut	Description
ctrl+1	Switch to regex matching
ctrl+2	Switch to regex substitution
ctrl+3	Switch to regex list substitution
ctrl+4	Switch to unit tests
ctrl+b	Open regex debugger
ctrl+g	Open code generator
ctrl+enter	Run unit tests (when view is open)

Regular Expressions 101

Regular Expressions 101

What's new?

Save & Share

Save Regular Expression

Link to regular expression

Submit Workspace to Regex Library

Title *

Description *

Headers

Author

Delete Regex

FlavorNeed help selecting flavor?

Flavor Help

Function

Tools

Advertisements and your privacy

Explanation

Match Information

Quick Reference

Regular Expression
Regex Versions
No Match

Regex Versions

Delimiters

Regex Flags

Test String

Code Generator

Language

Generated Code

Keyboard Shortcuts

Regular Expressions 101

Save & Share

FlavorNeed help selecting flavor?Need help selecting flavor?

Function

Tools

Explanation

Match Information

Quick Reference

Regular Expressionv1Select Regex VersionRegex VersionsNo Match

Regex Versions

Delimiters

Regex Flags

Test String

Code Generator

Language

Generated Code

FlavorNeed help selecting flavor?

Regular Expression
Regex Versions
No Match