Find and replace text online

Type the text to find and the replacement. Every occurrence is replaced at once, and the note under the result shows how many replacements were made. Leave Replace with empty to delete every occurrence.

Example with the default sample text:

• Text: The apple is red. The apple is sweet. Apples are good.
• Find apple, replace with pear
• Result: The pear is red. The pear is sweet. Apples are good.

Apples wasn't changed because the search is case-sensitive by default. Turn on Ignore case and it becomes pears are good (the replacement is inserted exactly as you typed it, so the capital A is lost).

• Ignore case treats apple, Apple and APPLE as the same.
• Whole words only matches the search term only when it isn't part of a longer word. Searching for cat then skips category and concatenate. Word boundaries work with accented letters and digits too.

These two options together cover most everyday edits: renaming a product throughout a document, fixing a misspelled name, or swapping a placeholder like [CLIENT] for a real name.

A common real-world job: a contract template uses [CLIENT] and [DATE] placeholders.

1. Paste the template.
2. Find [CLIENT], replace with Acme Corp., and copy the result back with Use result as input.
3. Find [DATE], replace with November 13, 2026.
4. Download or copy the finished text.

Leave Regular expression off for this: square brackets have a special meaning in regex, but in normal mode they are matched literally.

Turn on Regular expression for pattern-based replacements. The search uses JavaScript regex syntax with Unicode support. In the replacement you can use:

Token	Inserts
$1, $2 …	The text matched by a capture group
$<name>	A named group, from (?<name>…)
$&	The whole match
$$	A literal dollar sign

Some handy patterns:

Task	Find	Replace
Swap "Last, First" to "First Last"	(\w+), (\w+)	$2 $1
Change MM/DD/YYYY to YYYY-MM-DD	(\d{2})/(\d{2})/(\d{4})	$3-$1-$2
Collapse repeated spaces	{2,}	(one space)
Remove spaces at line ends	`[ \t]+(?=\n	$)`
Wrap numbers in brackets	\d+	[$&]

If the pattern has an error, such as an unclosed bracket, the tool shows the error message instead of changing your text. Note that ^ and $ match the start and end of the whole text, not of each line.

Use Open file to load .txt, .csv, .md, .html, .json and other plain-text files, then Download the edited version. That makes it easy to update a config file, fix a term across a long Markdown document, or clean up a CSV export.

For related jobs, try filter lines to keep or remove whole lines that contain a word, or add prefix and suffix to lines to change every line at once.

Your text stays in your browser; nothing is uploaded or saved.