Comprehensive regular expression cheat sheets covering core syntax, quantifiers, groups, lookarounds, flags, Unicode, JavaScript, PCRE, grep, sed, IDE search, and practical recipes.
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Regex Cheat Sheets
Regular expression patterns, syntax, and recipes for search, validation, extraction, and text transformation.
Popular in Regex
Quick picks to get you started.
Regex Examples and Cookbook
Large cookbook of validation, extraction, cleanup, and code-search regex recipes for everyday engineering work.
Updated 3/6/2026
Regex for VS Code and IDE Search
Regex patterns and search/replace recipes for VS Code, JetBrains IDEs, and common editor refactors.
Updated 3/6/2026
Regex for PCRE, grep, ripgrep, and sed
Regex patterns and command-line workflows for grep, ripgrep, sed, awk, and advanced PCRE-style features.
Updated 3/6/2026
Regex in JavaScript
JavaScript RegExp syntax, APIs, flags, named captures, and high-value browser/Node recipes.
Updated 3/6/2026
Regex Cheat Sheet
Core regular expression syntax, classes, quantifiers, groups, lookarounds, flags, and performance techniques.
Updated 3/6/2026
All Regex sheets
5 published sheets · sorted by recently updated.
Regex Examples and Cookbook
Large cookbook of validation, extraction, cleanup, and code-search regex recipes for everyday engineering work.
Updated 3/6/2026
Regex for VS Code and IDE Search
Regex patterns and search/replace recipes for VS Code, JetBrains IDEs, and common editor refactors.
Updated 3/6/2026
Regex for PCRE, grep, ripgrep, and sed
Regex patterns and command-line workflows for grep, ripgrep, sed, awk, and advanced PCRE-style features.
Updated 3/6/2026
Regex in JavaScript
JavaScript RegExp syntax, APIs, flags, named captures, and high-value browser/Node recipes.
Updated 3/6/2026
Regex Cheat Sheet
Core regular expression syntax, classes, quantifiers, groups, lookarounds, flags, and performance techniques.
Updated 3/6/2026