Regex Replace: Find & Replace With Patterns
Practical regex find-and-replace examples: reformatting dates, extracting data, cleaning text, and batch renaming.
JavaScript Replace
// Reformat date: MM/DD/YYYY → YYYY-MM-DD\n'03/25/2026'.replace(/(\d{2})\/(\d{2})\/(\d{4})/, '$3-$1-$2')\n// → '2026-03-25'\n\n// Remove HTML tags\nhtml.replace(/<[^>]*>/g, '')\n\n// CamelCase to kebab-case\n'camelCase'.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase()Try It Free
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