Find & Replace

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.