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Find & Replace

Find and replace text with support for regex, case-sensitive matching, and whole word matching. Replace all or first occurrence.

Built & Maintained by the devtoolspack Team

Last updated: March 2026

Search & Replace

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Master Dynamic Text Substitutions with Find & Replace

Efficiency in text editing is often defined by how quickly you can perform repetitive tasks. Our Find & Replace Tool is a comprehensive productivity utility designed for developers, copywriters, and data analysts. Unlike basic browser-based search functions, this tool offers advanced Regular Expression (Regex) support and Whole Word targeting, ensuring your substitutions are surgical and error-free.

Whether you are refactoring variable names in a code block or sanitizing a large CSV dataset, our local-first processor handles everything with zero latency and maximum privacy.

Advanced Search Features for Professionals

Basic text editors often fall short when dealing with complex patterns. This tool bridges that gap with professional features:

  • Regex Integration: Use powerful JavaScript regular expressions to match patterns beyond literal text (e.g., finding all emails, timestamps, or digits).
  • Whole Word Matching: Prevent accidental replacements (like changing "cat" to "dog" inside the word "category") by ensuring only stand-alone words are targeted.
  • Match Counting: Get instant feedback on exactly how many occurrences will be affected before you commit to the replacement.

Privacy-First Text Processing

We understand that your text may contain proprietary code, sensitive configurations, or private communication logs. Our Find & Replace tool is built on a security-first architecture. All text processing occurs locally within your browser's memory using the native JavaScript .replace() and RegExp engines. No textual data—original or modified—is ever transmitted to our servers. Your data remains 100% private.

Frequently Asked Questions

What is the difference between "Replace All" and "Replace First"?

"Replace All" replaces every occurrence of the search text in your input. "Replace First" only replaces the first match found. Use "Replace First" when you want to make selective replacements.

How do I use regular expressions?

Enable the "Use regex" option and enter a valid JavaScript regular expression pattern in the Find field. For example, use "\d+" to match numbers, "[A-Z]+" for uppercase words, or "^.*quot; for entire lines. The tool will validate your regex and show an error if invalid.

What does "Match whole words" do?

When enabled, the search will only match complete words. For example, searching for "cat" will match "cat" but not "category" or "scatter". This uses word boundaries (\b) in the matching logic.

Is the search case-sensitive by default?

No, searches are case-insensitive by default. This means "Apple" and "apple" are treated as the same. Enable "Case-sensitive" if you need to match exact letter casing.

Can I use special characters in find and replace?

Yes. In normal mode, all characters are treated literally. In regex mode, special characters like ., *, +, ?, [, ], (, ), {, }, |, ^, $, and \ have special meanings. Use backslash (\) to escape them if you want to match them literally in regex mode.