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Find and replace online

Find and replace text online with normal, extended, or regex mode. Match case, whole words, count occurrences, then copy or download.

What is find and replace online?

Find and replace online is a text replacer that searches pasted content for a string or pattern and substitutes a replacement value. Use normal mode for literal text, extended mode for escape sequences, or regex mode for advanced patterns, then review the occurrence count. People also search for search and replace, replace text online, text find and replace, or string replace online; this page serves that intent. It does not edit Word documents or Notepad files directly.

Find and replace features

Controls for search and replace text workflows.

  • Instant replace

    Output and occurrence count refresh as you edit text or options.

  • Normal, extended, and regex

    Literal search, escape sequences, or regular expression patterns.

  • Case and whole-word matching

    Toggle case sensitivity and whole-word-only matching.

  • First match only

    Replace the first occurrence without changing later matches.

  • Occurrence counter

    See how many matches were found in the input text.

  • Copy and download

    Export replaced text as plain text in one click.

How to search and replace text

Three steps for replaced output.

  1. Paste your text

    Enter the content you want to search in Original text.

  2. Set search and replace

    Fill Search for and Replace with, then pick mode and matching options.

  3. Copy or export

    Review occurrences, then use Copy all, Download text, or Open in new tab.

Tips for search and replace

Avoid common replacement mistakes.
  • 01

    Start in normal mode

    Use literal matching first before switching to regex.

  • 02

    Check the occurrence count

    Confirm how many matches exist before copying output.

  • 03

    Use whole word for terms

    Prevent partial replacements inside longer words.

  • 04

    Try extended for newlines

    Search for \n or \t when replacing line or tab characters.

  • 05

    Validate regex patterns

    Invalid regular expressions show an error and leave input unchanged.

When to use find and replace online

Common replace text tasks.

  • Bulk word swaps

    Change repeated terms across a pasted block in one pass.

  • Cleanup pasted logs

    Replace tokens, prefixes, or markers in exported log text.

  • Regex cleanup

    Use patterns to normalize spacing, punctuation, or line formats.

  • Case fixes

    Swap specific strings with case-sensitive or insensitive matching.

  • Quick QA edits

    Test replacement rules on sample text before using them elsewhere.

Why use this find replace tool

Fast text replacement without desktop software.

  • Immediate

    No run button required for standard use.

  • Flexible modes

    Literal, extended escapes, and regex in one interface.

  • Private

    All processing stays in the browser.

  • Portable output

    Copy, download, or open output in a separate tab.

Technical details

How the find and replace processor works.
Input format
Plain text with Unix or Windows line endings.
Normal mode
Treats search and replace values as literal strings.
Extended mode
Parses \n, \r, \t, \b, and \\ escape sequences before matching.
Regex mode
Uses JavaScript regular expressions with optional multiline matching.
Runtime
Client-side in modern browsers.

Sources & References

Authoritative references on string replacement, regular expressions, and escape sequence parsing this search and replace tool uses.
  • “The String.replace() method can accept a string or regular expression as the search pattern and a string or function as the replacement, enabling both literal and pattern-based text substitution.”
    — MDN Web Docs — String.replace

    JavaScript String.replace() and regular expressions: Normal mode uses literal string replacement. Regex mode uses JavaScript RegExp patterns with support for capture groups in the replacement. Extended mode parses escape sequences before matching. developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace

  • “Regular expressions provide a powerful pattern-matching language for searching and replacing text based on character classes, quantifiers, groups, and anchors.”
    — MDN Web Docs — Regular expressions

    Regular expressions for text pattern matching: In regex mode, the search pattern is compiled as a RegExp with optional case-insensitive and multiline flags. An occurrence counter reports how many matches exist before replacement. developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions

  • “Escape sequences such as \n (newline), \r (carriage return), \t (tab), and \\ (backslash) allow representing non-printable characters in search and replace strings.”
    — Various — Escape sequences in programming

    Escape sequence parsing for extended replacement: Extended mode parses common escape sequences before performing replacement, enabling users to search for or replace with newline, tab, and other control characters. en.wikipedia.org/wiki/Escape_sequence

Frequently Asked Questions

Quick answers about this tool—open a question to read more.