Find and Replace Text

Find a word or pattern in your text and replace every match, with options for case, whole words and regular expressions.

Find and replace

Type what to find and what to put instead.

Your text

Find

Replace with

Match upper and lower case exactly

Whole words only

Use a regular expression

Result

The dog sat on the dog mat. Condogenate the dog.

Matches replaced

Private: Everything runs in this page. Nothing you type is sent anywhere or saved.

Updated Nov 14, 2026

On this page

Find and replace examples

Text	Find / replace	Options	Result
a.b.c	. / -	default	a-b-c
Cat cat CAT	cat / dog	default	dog dog dog
Cat cat CAT	cat / dog	cs	Cat dog CAT
cat concat cat	cat / dog	word	dog concat dog
10-20	(\d+)-(\d+) / $2-$1	regex	20-10

every match of the find text is replaced by the replacement

Step onePaste your text in the first box.
Step twoType the text to find and the text to put instead. Leave the second empty to delete every match.
Step threeTick the options you need, then copy the result.

Without the regular expression option, special characters such as a dot or a star are treated as plain text.
A badly written regular expression can take very long to run. The page runs it in the background and stops it after 1.5 seconds with a message, so the page stays usable.
Where the browser cannot start a background worker (or the page is opened as a local file), the pattern runs in the page itself, only the first 1,000 characters are checked, and a very slow pattern can still make the page wait.
It works on the text in the box only and never on files.

Tick the regular expression option and write a pattern. For example \d+ matches a run of digits, and (\w+)@ captures the word before an at sign.

With the regular expression option on, $1 stands for the first group in brackets, $2 for the second, and $& for the whole match.

The tool shows the reason and leaves your text unchanged.