- regex101: build, test, and debug regex
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP PCRE, Python, GO, JavaScript, Java, C# NET, Rust
- RegExr: Learn, Build, Test RegEx
Menu RegExr is an online tool to learn, build, test Regular Expressions (RegEx RegExp) Supports JavaScript PHP PCRE RegEx Results update in real-time as you type Roll over a match or expression for details
- Regular expression - Wikipedia
The phrase regular expressions, or regexes, is often used to mean the specific, standard textual syntax for representing patterns for matching text, as distinct from the mathematical notation described below
- Regular expression syntax cheat sheet - JavaScript | MDN
For example, [^abc] is the same as [^a-c] They initially match "o" in "bacon" and "h" in "chop" Note: The ^ character may also indicate the beginning of input Wildcard: Matches any single character except line terminators: \n, \r, \u2028 or \u2029
- Regex Tutorial - How to write Regular Expressions?
A regular expression (regex) is a sequence of characters that define a search pattern Here's how to write regular expressions: Start by understanding the special characters used in regex, such as " ", "*", "+", "?", and more Choose a programming language or tool that supports regex, such as Python, Perl, or grep
- Regex Cheat Sheet
If you are a complete beginner, you should get a firm grasp of basic regex syntax just by reading the examples in the tables I tried to introduce features in a logical order and to keep out oddities that I've never seen in actual use, such as the "bell character"
- RegexOne - Learn Regular Expressions - Lesson 1: An Introduction, and . . .
Learn Regular Expressions with simple, interactive exercises Regular expressions are extremely useful in extracting information from text such as code, log files, spreadsheets, or even documents
- Regular Expressions Quick Reference
This quick reference is a summary of all the regex syntax that is listed in the full reference tables, without any explanation You can use this table if you’ve seen some syntax in somebody else’s regex and you have no idea what feature that syntax is for
|