Find and Replace With Regular Expressions
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Regular expressions (regex) are patterns that match text with surgical precision. A simple pattern like [aeiou] matches every vowel. \b\d{4}\b matches any standalone 4-digit number. Capture groups let you rearrange matched text — (\w+)\s(\w+) with replacement $2 $1 swaps two words. Our tool supports the full JavaScript regex engine with flags for global, case-insensitive, and multiline matching.
Multi-Replace: Batch Find and Replace
Multi-replace mode lets you define multiple find/replace pairs and apply them all to the same text in one operation. This is useful for bulk cleanup tasks like replacing multiple brand names, correcting multiple common typos, converting multiple abbreviations, or applying a series of text transformations without running the tool multiple times.
Use the Find and Replace Text above — enter your values and get instant results. This free online tool calculates how to find and replace text online without any download or signup required. Results update in real time as you type.
Use the Find and Replace Text above — enter your values and get instant results. This free online tool calculates find and replace multiple words without any download or signup required. Results update in real time as you type.
Yes. In regex mode, use $1, $2, etc. in the replacement field to reference capture groups from your pattern. For example, if your pattern is (\w+)\s(\w+) (matching two words), the replacement $2, $1 would swap them and add a comma. This is powerful for reformatting data like dates from MM/DD/YYYY to YYYY-MM-DD using (\d{2})\/(\d{2})\/(\d{4}) → $3-$1-$2.
With "Whole word only" enabled, searching for "cat" will match "cat" but NOT "category", "concatenate", or "scat". This uses word boundary anchors (\b) around your search term. It's useful when replacing common short words that appear inside longer words — for example, replacing "app" without affecting "application" or "apple".