Find and Replace Text: Search and Replace Online Instantly

Need to change a word, phrase, or pattern everywhere in a document? The Find and Replace Text tool lets you search for text (or a regular expression) and replace it with something else — first match only or all matches — with an optional case-sensitive search. All processing runs in your browser; no data is sent to any server.

Example: Paste a long document where you need to swap “Project Alpha” for “Project Beta,” or use a regex like \d3-\d2-\d4 to find and mask dates. Set “Replace first occurrence only” if you only want to change the first instance. The output updates as you type. Copy the result with one click.

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What is Find and Replace?

Find and replace (search and replace) means searching for a string or pattern in your text and replacing it with another string. You can replace the first match only or every occurrence. The Tooladex Find and Replace Text tool supports both plain text and regular expressions, so you can do simple word swaps (e.g. “foo” → “bar”) or pattern-based replacements (e.g. all numbers, all email addresses).

All processing happens in your browser. Your text is never sent to any server, so it is safe for sensitive or private content.

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Why Use Find and Replace?

Bulk edits — Change a name, term, or phrase everywhere in a document without opening a full editor.

Code and config — Replace variable names, URLs, or environment-specific values across files or snippets.

Data cleanup — Use regex to normalize dates, numbers, or formats (e.g. replace phone or date patterns with a masked or standardized form).

Lists and CSV — Swap delimiters, fix repeated typos, or standardize abbreviations in line-based or comma-separated data.

Content updates — Update product names, branding, or links across multiple paragraphs or pages in one go.

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How Find and Replace Works

1. Enter the text to find in the “Find” field. Turn on “Use regular expression” if you want to use a regex pattern.
2. Enter the replacement text in the “Replace with” field. For regex, you can use capture groups (e.g. $1, $2) in the replacement.
3. Paste or type your input text in the input area.
4. Set options — case sensitive, replace first only — and view the result. The output updates as you type.
5. Copy the result with one click.

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Options

Case sensitive — When on, “Hello” and “hello” are different; when off, they match regardless of case.

Use regular expression — When on, the Find field is treated as a JavaScript regex pattern. Invalid regex will show an error and the output will stay unchanged.

Replace first occurrence only — When on, only the first match is replaced; when off, all matches are replaced.

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Frequently Asked Questions

Can I use regex replacement groups?
Yes. When “Use regular expression” is on, you can use $1, $2, etc. in the Replace field to insert the first, second, … capture group. Use $& for the full match.

Is my text sent to a server?
No. All find-and-replace processing happens in your browser. Your text never leaves your device.

What if my regex is invalid?
If “Use regular expression” is on and the Find pattern is invalid, an error message appears and the output stays equal to the input until the pattern is fixed.

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Privacy

All processing runs in your browser. We don’t send or store your text.

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Try the Find and Replace Text Tool

The Find and Replace Text tool is free, works in your browser, and requires no sign-up. Enter find and replace strings (or a regex), paste your text, set options, and get the result with one click — perfect for bulk edits, code snippets, and data cleanup.

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Related Tools

• Text Compare — Compare two text blocks side-by-side and see differences
• Duplicate Line Remover — Remove duplicate lines from text, keeping first occurrence
• Case Converter — Convert text between uppercase, lowercase, title case, and more
• Regex Tester — Test and debug regular expressions with live match highlighting