Find & Replace

Regex · whole word · multiline · presets · live preview

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About this tool

Does the find-and-replace tool support regular expressions?
Yes. Toggle the Regex switch to use full JavaScript regex syntax — including capture groups, backreferences, and flags (case-insensitive, multiline, global).
Can I do case-insensitive search without regex?
Yes. Toggle the 'Aa' button for case-insensitive plain text search — no regex needed.
Does it show a preview before replacing?
Yes. Matches are highlighted in the input pane before you commit the replacement, so you can verify what will change.
Is there undo?
Yes. Cmd+Z / Ctrl+Z restores the previous state of the text, including before any replacements.