Find and Replace Text
Bulk find-and-replace with case, whole-word and regex control — preview count included.
Find and replace text instantly. Free find-replace with case toggle, whole-word and regex modes — no uploads.
Calculator Inputs
About Find & Replace
Bulk find-and-replace with case, whole-word and regex control — preview count included.
Type the search term and replacement, pick case and whole-word options, or enable regex for patterns like \b\w+@\w+\.\w+\b. The result shows the replaced text and how many hits changed.
Whole-word wraps the pattern in \b boundaries; case-insensitive is the default for prose. Everything runs in your browser.
Where it is used
Renaming terms across docs, fixing typos in bulk, redacting words, and regex-powered transforms.
How to use the Find & Replace
- Text — enter the value (e.g. The quick brown fox…).
- Find — enter the value (e.g. fox).
- Replace With — enter the value (e.g. cat).
- Case sensitive — enter the value.
- Whole word only — enter the value.
- Use regular expression — enter the value.
- Calculate — press the Calculate button to see the result instantly above.
Formula
Global replace with escaped or regex pattern, optional whole-word boundaries.
Examples
Example
Frequently Asked Questions
- Whole word vs substring?
- Whole word replaces fox in "fox" but not in "foxes" or "outfox". Substring replaces everywhere.
- Regex not working?
- Ensure valid regex syntax — unclosed brackets or stray backslashes throw. Test on regex101 first.
- Case insensitive by default?
- Yes, matching prose expectations. Tick case-sensitive for code and identifiers.