How Find & Replace works
Find & Replace works on the text you enter and applies the selected transformation or comparison rules. Results depend on the input text and, for language-sensitive operations, the wording and formatting of that text.
Search and replace text occurrences with regular expressions, case sensitivity, and whole word matching.
Search and replace text occurrences with Regex and match filters
The quick brown cat jumps over the lazy dog. The cat was quick, but the dog was lazy. cates are known for being quick and smart!
A fast client-side text find and replace tool. Substitute target keywords, patterns, or strings with support for RegEx (Regular Expressions), case matching, and whole-word boundaries.
Paste your source text into the left input workspace.
Enter the target string or RegEx pattern in the 'Find Text' input.
Enter the replacement text in the 'Replace With' input.
Toggle settings like Case Sensitivity, Whole Word, or Use Regex to refine your query, then copy the result.
Real-time replacement with match counter statistics
Full Regular Expression (RegEx) pattern support
Case-sensitive and Whole Word matching modes
Browser-based privacy — processing happens locally inside your browser
Find & Replace works on the text you enter and applies the selected transformation or comparison rules. Results depend on the input text and, for language-sensitive operations, the wording and formatting of that text.
Results are provided for convenience. Check the output against your own requirements before using it in an important workflow, publication or decision.
This tool is designed to perform its main calculation or transformation in your browser. Do not enter information that the tool does not need, and review the site's Privacy Policy for analytics, advertising and third-party services.
Answers about how the tool works, its limitations, and how your information is handled.
Whole Word matching uses regex word boundaries (\b) so that replacing 'cat' won't accidentally alter words like 'category' or 'concatenation'.
Yes! When RegEx mode is ON, standard JS regex capture group variables like $1, $2 can be referenced in the replacement input.
No. All search and replace functions execute entirely within your web browser.
This tool is designed to perform its main calculation or transformation in your browser. Do not enter information that the tool does not need, and review the site's Privacy Policy for analytics, advertising and third-party services.
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