Find and Replace
Search for text or patterns and replace them instantly. Supports regular expressions, case sensitivity, and capture group references. Free, private, and runs entirely in your browser.
What is Find and Replace?
Find and Replace is a fundamental text editing operation that searches for a specific string or pattern within your text and substitutes it with a replacement. Most text editors and word processors include this feature, but our online version adds powerful regex support, live match highlighting, and the ability to process large blocks of text without installing any software.
Regular Expression Support
When the Regex option is enabled, your search term is interpreted as a JavaScript regular expression. This allows you to match complex patterns such as email addresses, phone numbers, HTML tags, or repeated words. You can use capture groups in parentheses and reference them in the replacement with $1, $2, and so on. For example, searching for (\w+)\s(\w+) and replacing with $2 $1 will swap two adjacent words.
Common Use Cases
Find and Replace is useful for correcting repeated typos across a document, updating variable names in code, converting date formats, stripping unwanted characters, reformatting lists, and batch-editing content before publishing. The live preview shows exactly which parts of your text will be affected before you commit to the replacement, reducing the risk of unintended changes.