6 days ago · Character class: Matches any one of the enclosed characters. You can specify a range of characters by using a hyphen, but if the hyphen appears as the first or last character …

Apr 12, 2024 · 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, …

Jun 1, 2025 · Regular expressions (shortened as "regex") are special strings representing a pattern to be matched in a search operation. They are an important tool in a wide variety of …

Aug 23, 2025 · Regex (short for regular expression or regexp) is a compact language for describing text patterns. If you’ve ever needed to find, validate, or transform strings at scale, …

Jan 5, 2025 · Here's a quick regular expressions cheat sheet with examples to get started: .: Matches any character except newline. Example: a.c matches abc, adc. \w: Matches a word …

On each line, in the leftmost column, you will find a new element of regex syntax. The next column, "Legend", explains what the element means (or encodes) in the regex syntax.

Mar 1, 2025 · Regex is based on a set of patterns that describe text. A pattern consists of characters, metacharacters, and quantifiers that define what to search for. Here’s a simple …

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

It covers character classes, anchors, quantifiers, groups, common patterns, command combos, and more. Use it to boost your productivity in pattern matching and text processing. Use the …

RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).