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HomeToolsText ToolsFree Find and Replace

Part of Text Transformation

Text ToolsRegex

Free Find and Replace

Quickly find and replace text online with support for case sensitivity, whole word matching, and regular expressions. All processing happens locally in your browser.

TA
Tanbir Ahamed·Founder of ToolWise · Software Engineer
Published June 2026

Interactive Tool Workspace

Original Text

0 words·0 chars

How to Use

  1. 1Paste or type your text into the input area above.
  2. 2Enter the text you want to find in the Find field.
  3. 3Enter what you want to replace it with in the Replace field.
  4. 4Toggle options like Case Sensitive, Whole Word, or Regex as needed.
  5. 5Click Replace to see the result instantly with a match count.

Features

  • ✓Instant find and replace with real-time results
  • ✓Case sensitive and case insensitive matching
  • ✓Whole word matching to avoid partial replacements
  • ✓Full regular expression support for advanced patterns
  • ✓Shows total number of replacements made
  • ✓Copy result to clipboard with one click
Comprehensive Guide & Reference

The Complete Guide to Find and Replace

Master text search and replacement techniques, from simple string swapping to advanced regular expression patterns for power users.

1. What is Find and Replace?

Find and Replace is a fundamental text editing operation that locates a specific string of characters (the search term) within a document and replaces it with another string. It is one of the most commonly used operations in word processors, code editors, and data processing tools.

Whether you are correcting a spelling mistake across 50 pages of a document, updating a variable name in source code, or cleaning up a data dump, find and replace saves hours of manual editing by automating the process in milliseconds.

2. Matching Options Explained

Case Sensitive

Distinguishes between uppercase and lowercase letters. Without it, searching for"apple" will also match"Apple".

Whole Word Only

Only matches complete words. Searching for"cat" will not match"catch","concatenate", or"category".

Regular Expressions

Unlocks pattern matching. Use wildcards, anchors (^, $), and character classes for sophisticated search logic.

3. Common Regex Patterns

When you enable regex mode, you unlock a powerful pattern language for text manipulation:

  • ^ — Matches the start of a line
  • $ — Matches the end of a line
  • .* — Matches any character zero or more times
  • \d+ — Matches one or more digits
  • [a-zA-Z] — Matches any letter
  • \s+ — Matches one or more whitespace characters

Precision Edits at Any Scale

The ToolWise Find and Replace tool combines simplicity with powerful features like regex and whole word matching. Whether you are a writer fixing typos or a developer refactoring code, it provides the precision and speed you need.

Real example

Worked example: a US-spelling sweep

Input
Text: "colour, colours, colourful" · Find: colour · Replace: color
Output
→"color, colors, colorful" — 3 replacements, since the match also hits the start of colours and colourful.

Without whole-word matching, replacing a fragment like colour fixes every word built on it — usually exactly what you want here.

Worked example: case-sensitive brand names

Input
Text: "Apple juice and apple pie" · Find: Apple · Replace: orange · Match case: on
Output
→"orange juice and apple pie" — 1 replacement; the lowercase "apple" was skipped because Match case is on.

Turn Match case off when capitalization is unpredictable, or keep it on to protect words that merely look alike.

Privacy & data handling

This tool runs entirely in your browser. What you enter is processed on your own device using JavaScript and WebAssembly — it is not uploaded to our servers, and there is no account, no signup and no per-use limit. Read our privacy policy.

Frequently Asked Questions

How does the find and replace tool work?
Enter your original text in the input area, type the text you want to find, and enter the replacement text. Click Replace to process instantly. The tool shows the number of matches found and replaced.
Does it support regular expressions (regex)?
Yes! Enable the"Use Regular Expressions" toggle to use powerful regex patterns for advanced searching and replacing. You can use patterns like ^ for start of line, $ for end of line, and [a-z] for character ranges.
What is whole word matching?
When enabled, whole word matching ensures that only complete words matching your search term are replaced. For example, searching for"cat" with whole word matching will not replace"catch" or"caterpillar", only the standalone word"cat".
Is the tool case-sensitive by default?
No, the tool is case-insensitive by default (ignores capitalization). You can enable case-sensitive matching by toggling the"Case Sensitive" option to replace only exact matches for uppercase and lowercase letters.
Can I replace multiple occurrences?
Yes! The tool automatically replaces all occurrences of your search text in a single operation. The match counter shows exactly how many replacements were made.
What characters need escaping in regex mode?
When using regex mode, special characters like . * + ? ^ $ { } [ ] ( ) | \ need to be escaped with a backslash if you want to match them literally. For example, to match a period, use \.

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