Regular Expression Tester

Built In Regexes
Output Format
Regex
Case Insensitive
'^''$' Match Newlines
Dot Matches All
Unicode Support
Astral Support
Display Total

Regular Expression Tester can define your own regular expression (regex) to search the input data with, optionally choosing from a list of pre-defined patterns.

Tip: Supports extended regex syntax including the 'dot matches all' flag, named capture groups, full unicode coverage (including \\p{} categories and scripts as well as astral codes) and recursive matching.


References

https://wikipedia.org/wiki/Regular_expression

Featured Tools

Featured tools that you might find useful.

Popular Tools

List of popular tools that users love and frequently use.

New Tools

The latest tools added to our collection, designed for you.

Topics

The tools grouped by topics to quickly find what you need.
Parse and calculate Unix/Linux file permissions online. Convert octal numbers (like 755) to symbolic strings (rwxr-xr-x) with our visual chmod tool.

Parse UNIX File Permissions

Parse and calculate Unix/Linux file permissions online. Convert octal numbers (like 755) to symbolic strings (rwxr-xr-x) with our visual chmod tool.
Identify and analyze unknown hash types online. Detect MD5, SHA-256, bcrypt, and more based on length and format. 100% private, client-side processing.

Analyse Hash

Identify and analyze unknown hash types online. Detect MD5, SHA-256, bcrypt, and more based on length and format. 100% private, client-side processing.
Format and beautify minified CSS code instantly. 100% private, client-side CSS unminifier. Organize messy stylesheets with proper indentation securely.

CSS Beautify

Format and beautify minified CSS code instantly. 100% private, client-side CSS unminifier. Organize messy stylesheets with proper indentation securely.
Parse JavaScript code into an Abstract Syntax Tree (AST) online. 100% private, client-side JS parser for ESLint and Babel plugin developers.

JavaScript Parser

Parse JavaScript code into an Abstract Syntax Tree (AST) online. 100% private, client-side JS parser for ESLint and Babel plugin developers.