Can I undo a replace?

Use your browser undo in the textarea or re-paste the original text.

Is replacement live or on a button?

A live preview and match count appear below. Click Replace all to write the result back into the input field.

An error message appears and no replacements run until you fix the pattern.

Search and replace text with optional regex support. Replace all matches at once.

Runs locally — nothing is uploaded

1
Enter source text
Paste the document or snippet to edit.
2
Set find and replace
Type the search string and what to replace it with.
3
Enable regex (optional)
Turn on regular expressions for pattern-based replacements.
4
Replace all
Apply every match at once and copy the updated text.

Yes. Enable the regex checkbox for pattern-based find and replace with global matching.

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