Find and Replace String
Find and replace text, with optional case sensitivity and regex, live as you type.
Replaces every match, live as you type. With "regular expression" off, your search text is matched literally (special characters like . or * aren't treated as regex syntax). Runs entirely in your browser.
What is Find and Replace String?
Replaces every occurrence of a search string in your text, live as you type — no need to click a "Replace" button, and every match updates as soon as you adjust the search term, replacement, or options. Toggle case sensitivity when you need an exact match, or treat the search term as a full regular expression for pattern-based replacements like stripping all digits or normalizing whitespace. This is useful for quick text cleanup — renaming a variable across a pasted code snippet, fixing a repeated typo, or reformatting log output — without opening a full editor. Everything runs entirely in your browser; nothing you paste is sent to a server.
FAQ
Yes — with regex mode off, characters like . or * in your search term are matched literally, not as regex syntax. Turn on regex mode to use pattern matching.
Case sensitivity is a toggle you control — turn it on to match exact casing only, or leave it off to match regardless of case.
An invalid regular expression is flagged rather than silently failing, so you can fix the pattern before relying on the result.