Text Diff Checker
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Compare two pieces of text and see line-by-line additions and deletions, like a Git diff. Highlights every change.
Find & Replace
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Find and replace text in any document with case-sensitive, whole-word, and regex modes. Live match counter included.
Find & Replace
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About This Tool
Find & Replace Modes
- Plain — exact text match
- Case-sensitive — distinguishes upper and lowercase
- Whole word — matches whole words only (won’t match “cat” inside “category”)
- Regex — full JavaScript regular expression support for advanced patterns
Regex Cheat Sheet
d— any digits— any whitespacew— any word character.— any character+— one or more*— zero or more^...$— line start / end
Use capture groups (group) in your search and reference them as $1, $2 in the replace field.
Frequently Asked Questions
What if I need to replace newlines?
Enable Regex mode and use n for newlines, t for tabs, rn for Windows line endings. You can also normalize all line endings by replacing rn|r with n.
Can I do case-preserving replacement?
Standard replace doesn't preserve case (Apple u2192 orange becomes 'orange', not 'Orange'). For case-preserving replace, use regex with a function callback in browser dev tools, or post-process the result with a case converter.
How do I escape special regex characters?
Disable the Regex checkbox u2014 plain mode automatically escapes everything. If you need regex but want to match a literal '.' or '$', prefix it with a backslash: . or $.