Find & Replace (with Regex)
Search and replace across a whole block of text — plain or with regular expressions and capture groups. Live preview and match count, 100% client-side.
The result with your replacements will appear here.
About find & replace
Beyond simple text swaps, regular expressions let you match patterns — dates, tags, whitespace runs — and reuse captured groups in the replacement with $1, $2, and so on. This tool applies your pattern live with the flags you choose and shows how many matches it found, all in your browser with nothing uploaded.