Text Find & Replace

Find and replace text with support for regular expressions, case sensitivity, and whole word matching. See matches highlighted in real-time.

Find and replace text with regex support, case sensitivity, and whole word matching. See matches highlighted in real-time.

Input Text

Find

Replace With

Case sensitiveWhole wordUse regex

All processing happens locally in your browser. Supports JavaScript regex syntax including capture groups (, ) in replacements.

How to Use This Tool

1
Enter your text
Paste or type the text you want to search through. Click "Load Sample" to try with example text.
2
Set find and replace
Type the text to find and what to replace it with. Matches are highlighted in real-time as you type.
3
Configure options
Toggle case sensitivity, whole word matching, or enable regex for advanced pattern matching.
4
Replace and copy
Click "Replace First" or "Replace All", then copy the result or apply it back to the input.

Does it support regular expressions?: Yes. Enable the "Use regex" checkbox to use JavaScript regular expression syntax. You can use capture groups in replacements with , , etc.
What does "Whole word" mean?: When enabled, it only matches the search term when it appears as a complete word, not as part of another word. For example, searching for "cat" won't match "category".
Can I undo a replacement?: The replacement result is shown separately from the input. You can click "Apply to Input" to update the input with the result, or simply modify your search and try again.
Is there a size limit?: There is no hard limit, but very large texts (over 1MB) may slow down the real-time highlighting. The match preview is limited to 500 highlighted matches for performance.