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Find & Replace

Support plain text and regex, optional case-insensitive, replace everywhere

How to use

  1. Paste the source text into the "Original text" box.
  2. Fill "Find" and "Replace with"; optionally check "Regex" or "Ignore case".
  3. Click "Replace"; the result appears live on the right.
  4. Tip: in regex mode the replacement supports $1 $2 backreferences.

FAQ

Can the replacement box use $1 in regex mode?

Yes. The replacement supports backreferences like $1 $2 referencing capture groups in the regex.

How do ignore-case and regex work together?

When both "Regex" and "Ignore case" are checked, the i flag is added automatically so matching is case-insensitive.