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Regex Replace

Find and replace text using regular expressions with live preview and capture group support.

Pattern

Flags: g global i ignore case m multiline

Replacement

Use $1, $2… to reference capture groups. Use $& for the full match.

Input Text

Matches in Input

Enter a pattern to search for — use capture groups () to save parts of each match.
In the replacement, use $1, $2 to reference captured groups.
Enable the g (global) flag to replace all occurrences, not just the first.
Results update automatically as you type.