Find & Replace

Step-by-step guide

1. 1
   Paste the source text
   Paste the text you want to modify into the Original Text area. You can use the sample to get started.
2. 2
   Enter the search term
   Type the text you want to find in the Find field. The tool shows a live match count as you type.
3. 3
   Enter the replacement
   Type the replacement text in the Replace with field. Leave it empty to delete all matches.
4. 4
   Configure matching options
   Toggle Match case, Whole word, and Regex mode as needed. Regex mode accepts JavaScript regular expressions.
5. 5
   Click Replace All and copy
   Click Replace All to apply all substitutions at once. Review the result, then click Copy to use it.

Frequently Asked Questions

Does the find and replace tool support regular expressions?

Yes. Toggle Regex mode to enter JavaScript regular expressions in the Find field. For example, use \d+ to match one or more digits, or [aeiou] to match any vowel.

What does 'Whole word' matching do?

Whole word matching wraps the search term in word boundaries (\b in regex), so searching for 'cat' will not match 'catch' or 'concatenate': only standalone occurrences of the word 'cat'.

Can I use capture groups in the replacement?

Yes, when Regex mode is active. Use $1, $2, etc. in the replacement field to reference capture groups from the Find pattern. For example, find (\w+) (\w+) and replace with $2 $1 to swap two words.

How many replacements can it handle?

All matches in the text are replaced in one operation regardless of count. The tool shows the exact match count before you commit to replacing.

Can I undo a replacement?

The original text in the input area is not modified by the Replace All action: it produces a new output in the Result area. You can always edit the Find or Replace fields and run again.

What happens if I leave the Replace field empty?

All matches are deleted from the text, effectively removing every occurrence of the search term.

Can I do sequential replacements?

Run the first replacement, copy the result, paste it back into the Original Text area, and run the second replacement. This allows chaining multiple substitutions.

Is my text sent to a server?

No. All find and replace operations run entirely in your browser using JavaScript's native string replace method. Your text never leaves your device.

What is the difference between case-sensitive and case-insensitive matching?

With Match case off (default), 'hello', 'Hello', and 'HELLO' are all treated as the same search term. With Match case on, only exact-case matches are replaced.