Does Find & Replace support regular expressions?

Yes. Enable Regex to use patterns such as \d+ for numbers. Replacement groups like $1 and $2 work in regex mode.

Can I match whole words only?

Yes. Whole word wraps the search in word boundaries, so searching "cat" will not change "category". Case sensitivity is a separate toggle.

No. All matching and replacement happens in your browser. Nothing is sent to a server or stored.

How do I keep the original text?

The result appears in the output box and can be copied or downloaded. Your original text stays in the input box until you clear it, so you can compare both before replacing it.

Find & Replace (Regex & Whole Word)

Find & Replace

Replace text across a document with plain matching, whole words or regular expressions. The match count updates as you type. Everything stays in your browser.

Find

Replace with

Regex Whole word Match case

Original text

0 lines in the result

Result

Regex examples

Goal	Find	Replace
Collapse spaces	\s+
Swap first and last name	(\w+) (\w+)	$2, $1
Remove blank lines	^\s*$\n?	(empty)

Need to clean punctuation first? Try the Text Cleaner, then compare versions with the Diff Checker.

Find & Replace

Regex examples

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