Find and replace text with regex, case and word options
This Find and Replace tool lets you swap one piece of text for another across an entire document in a single click. Type what you want to find, type the replacement, and watch a live counter show how many matches exist before you commit. It is ideal for renaming a term throughout an article, fixing a repeated typo, reformatting data, or performing bulk edits that would be slow and error-prone to do by hand in a basic text box.
Power comes from the matching options. Toggle case sensitivity to control whether capitalization matters, enable whole-word matching so "cat" never accidentally alters "category", or switch on regex mode to unleash full regular-expression syntax with capture groups, character classes and anchors. Regex mode turns simple replacement into a precision instrument capable of reformatting dates, extracting patterns, or normalizing messy input in ways plain find-and-replace cannot touch.
Everything is processed locally in your browser, so your text — however sensitive — is never uploaded or stored. Invalid regular expressions are caught and reported clearly instead of breaking the tool, letting you experiment with patterns safely. With no signup and nothing to install, it is a fast, private workspace for the kind of bulk text surgery that normally requires a code editor or a command-line utility.