Find & Replace

Find text patterns and replace them with support for regex and case sensitivity.

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Quick Answer

It finds every occurrence of a word, phrase, or regex pattern in your text and replaces it with your chosen replacement, with a live preview of the result.

What Is Find & Replace?

Find & Replace is a free online text tools tool that find text patterns and replace them with support for regex and case sensitivity. A find and replace tool locates every occurrence of a word, phrase, or pattern in your text and replaces it with something else. The basic mode matches exact text — every instance of "colour" becomes "color". The regex mode uses pattern matching so you can catch variations: for example, d{3}-d{4} finds phone-number-like patterns, and turning on case sensitivity treats "Cat" and "cat" differently. Previewing is essential: a replacement that looks right in one context can damage another (for example, replacing "it's" with "its" changes every possessive into a contraction). The tool shows a live preview of the result so you can review before applying. It also reports the count of matches and replacements. All processing is local; your text is never uploaded. Unlike many similar tools, it runs entirely in your browser — no data is sent to any server, no account is required, and there are no usage limits. Whether you are a developer, writer, SEO professional, or casual user, this tool provides instant, accurate results without friction.

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How to Use Find & Replace

Paste your text, enter the search term or pattern, and the replacement text. The preview updates live, showing the result. Toggle regex mode or case sensitivity as needed.

Key Features

Plain text and regular expression (regex) modes
Case-sensitive toggle
Live preview before applying
Match count and replacement count

Common Use Cases

Bulk-updating a repeated term across a document
Swapping placeholder values (e.g., {{NAME}} → actual name) in templates
Cleaning up imported text with inconsistent formatting

Common Mistakes to Avoid

Replacing without checking the preview first
Forgetting to escape special characters in regex mode
Over-replacing: changing a substring that appears inside other words

Common Questions About Find & Replace

Can I use regular expressions?

Yes. Toggle regex mode to match patterns like emails, dates, or number formats instead of fixed strings.

Does the tool show how many matches were found?

Yes. It displays the match count and the count of replacements actually applied.

Related Tools & Resources

Text Diff
Case Converter
Remove Duplicates

Best Practices for Find & Replace

To get the most out of Find & Replace, follow these best practices. Ensure your input data is clean and properly formatted for the most accurate results. Use the copy function to transfer output directly to your clipboard. Bookmark the tool for easy access. Check the related tools section below for complementary utilities that can enhance your workflow. Remember that all processing is client-side, so your data never leaves your browser.

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Privacy & Security

Find & Replace processes all data entirely within your browser using JavaScript. No text, files, or personal information is transmitted to any server. Your data stays on your device, making this tool safe for sensitive content. We do not track usage, store inputs, or share data with third parties. The tool works offline after the initial page load and requires no account to use.

Frequently Asked Questions

Find answers to common questions about this tool.

Why does my regex pattern match nothing when it should?

Check that "Use Regex" is enabled. Without regex mode, the tool treats your find input as a literal string. Also verify your regex uses JavaScript syntax, not PCRE or Python.

Can I use capture groups in the replacement text?

Yes. Use $1, $2, etc. in the replacement field to reference capture groups from your regex. For example, find "(hello) (world)" and replace with "$2 $1" to swap the words.

How do I match a newline or tab character?

With regex mode enabled, use \n for newlines and \t for tabs. In literal mode, you can paste the actual newline or tab character directly into the find field.

What does "Whole Word" matching do?

It matches only when the find term appears as a complete word, not as part of another word. Searching for "cat" with whole word enabled matches "cat" but not "catalog" or "scat".

Can I undo a replace operation?

No, replacements are applied instantly with no undo. If you make a mistake, reload the page and paste your original text again to start over.

Resources

Topic Cluster

Word counter, case converter, lorem ipsum generator, text diff checker, find and replace, character frequency analyzer, reverse text, duplicate remover, palindrome checker, and text to slug converter for text processing.

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All tools run entirely in your browser. No data is sent to any server. 100% private and free.

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