Find and Replace
Replace text or regular expressions. The original stays; the result updates live. Optional case-insensitive match.
2 matches
How it works
Paste the text
Drop your text into the top box. Load sample loads a quick demo. The original is never overwritten.
Enter find and replace
Type what to search for in Find and the replacement in Replace with. Tick Ignore case for Cat = cat matching, or Regex to use JavaScript regular expressions with groups ($1, $2).
Check the match count and copy
The match count updates live next to the options. When the result looks right, click Copy.
What is find and replace?
Find and replace is one of the most common text-editing operations: swap every occurrence of a phrase for something else. Editors use it to rename a term throughout a document; developers use regex patterns to reshape log lines or reformat data. This tool runs the operation entirely in the browser so your text never leaves your device.
Why use this tool
- Live replace — original and result shown side by side
- Plain text or full JavaScript regular expressions
- Case-insensitive mode for both text and regex
- Live match count. Load sample. No daily cap
Questions
What does Find and Replace do?
It replaces every match of a search string or regular expression in your text and shows the result alongside the original.
How do I use Find and Replace?
Paste text into the top box, fill in Find and Replace with, optionally tick Regex or Ignore case, then copy the result.
How do regular expressions work here?
The engine uses JavaScript regex with a global flag so all matches are replaced. Capture groups in the replacement use $1, $2, and $& for the full match. Invalid patterns show an error and leave the text unchanged.
Can I replace only part of the matches?
Not yet — this tool replaces all occurrences. For selective replacement, use a regex that is specific enough to match only what you want.
Is the original overwritten?
No. The result appears in a separate read-only box below so you can compare and then copy.
Is my text sent to a server?
No. All replacing runs locally in this tab. Nothing is uploaded.
Is there a daily limit?
No. There is no usage cap on this tool.
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