Find & Replace

How to Use Paste your source text into the input area. Enter the search term in the 'Find' field and the replacement in the 'Replace' field. Toggle case sensitivity and whole-word matching as needed. Choose 'Replace All' for a bulk update or step through matches one at a time. Copy the result when done. Who Is This For Developers doing bulk string replacements across code or config files, engineers renaming variables or class names as part of a refactor, and translators replacing outdated terminology in a large document. Key Features • Find and replace across entire text • Case-sensitive and whole-word matching options • Regular expression replacement mode • Replacement count statistics • Step-by-step and replace-all modes Frequently Asked Questions Q: Can I use regex for complex pattern replacements? A: Yes, enable regex mode and use capture groups ($1, $2) to reference matched parts in the replacement string. Q: Can I undo a replacement? A: No undo is available since processing happens in the browser. Keep a copy of your original text before replacing. Q: Does it handle large text efficiently? A: Text up to a few hundred KB is processed quickly. Very large files (several MB) may slow down. Tips Enable 'Whole Word' matching when renaming a variable like 'user' to 'admin' — this prevents 'username' from becoming 'adminname'. In regex mode, use \n to find and replace newlines.