Find & Replace (with Special Characters)

Utilities Client-side replace find text newline tab carriage-return special-characters regex

This tool runs entirely client-side, in your browser: your data is never sent anywhere.

What it does

Replaces every occurrence of a character (or sequence of characters) in a text with another one — entirely in your browser. Unlike a plain "find and replace" box, this tool understands special/whitespace characters that are otherwise impossible to type or paste directly, such as:

Newline (\n)
Carriage return (\r)
Tab (\t)
Null character (\0)
Any character by its Unicode code point (e.g. \u00A0 for a non-breaking space)

You can also enable regular expression mode for more advanced pattern-based replacements.

Try it

Text

Find

Find type

Replace with

Replace type

Replace all occurrences (not just the first)

Case-insensitive (literal/regex modes only)

Result

How it works

Your text and "find"/"replace" values never leave your browser — all processing happens locally in JavaScript.
Find type controls how the "Find" field is interpreted:

Special sequence — escape sequences like \n, \t, \r, \0, \uXXXX, and \xXX are converted to their real character before searching. Anything else in the field is treated literally.
Literal text — the field is matched exactly as typed, no escape sequences are processed.
Regular expression — the field is compiled as a JavaScript regular expression (without surrounding slashes), letting you use patterns like \s+ (any whitespace) or [aeiou] (any vowel).

Replace type works the same way for the replacement value (special sequence or literal text — regex isn't needed here since you're not matching, just substituting).
If "Replace all occurrences" is checked, every match is replaced (equivalent to a global regex); otherwise only the first match is replaced.
The result is displayed in the box below, exactly as produced — including any newlines/tabs it now contains (they'll render as actual line breaks/indentation since the box preserves whitespace).

Supported special sequences

Sequence	Meaning
`\n`	Line feed (newline)
`\r`	Carriage return
`\t`	Tab
`\0`	Null character
`\\`	A literal backslash
`\uXXXX`	Unicode character by 4-hex-digit code point (e.g. `\u00A0`)
`\xXX`	Character by 2-hex-digit code point (e.g. `\x09` = tab)

Common examples

Convert Windows line endings to Unix: Find \r\n, Replace \n.
Convert tabs to 4 spaces: Find \t, Replace (literal text mode).
Strip all carriage returns: Find \r, Replace with nothing (leave "Replace with" empty).
Collapse multiple blank lines: Find type "Regular expression" with \n{2,}, Replace \n\n (special sequence mode).