Find & Replace (Regex)

Find and replace text with full regex support — including capture groups, backreferences, and JavaScript regex flags (g, i, m, s, u). Live highlight of matches, total count, group preview, and copy-able result. Works fully in your browser. Supports RTL (Arabic, Hebrew, Persian) input.

Why choose Find & Replace (Regex)?

Find & Replace (Regex) provides an efficient browser-based environment for executing complex text transformations using full regular expression support. Users benefit from real-time match highlighting, capture group previews, and backreference capabilities without needing to install external software or create an account. The client-side execution ensures that all text processing occurs locally within the browser for enhanced privacy.

Good to know: Very large datasets or automated batch processing pipelines may require specialized command-line utilities or scripting environments rather than a browser-based utility.

How to Use Find & Replace (Regex)

Learn how to perform advanced text replacements using regular expressions, capture groups, and live highlights directly in your browser.

1. 1

   Paste your text into the input field

   Enter or paste the content you want to process into the main text area. The tool supports RTL languages like Arabic and Hebrew automatically.

2. 2

   Enter your search pattern and flags

   Type your regular expression in the find field and select necessary JavaScript flags like global, case-insensitive, or multiline.

3. 3

   Define the replacement string or backreferences

   Input the new text in the replace field, utilizing capture groups and backreferences to transform specific parts of your matches.

4. 4

   Review live highlights and match counts

   Check the real-time preview to see highlighted matches and the total count before finalizing your changes.

5. 5

   Copy the processed result

   Once satisfied with the preview, click the copy button to retrieve your updated text with all regex replacements applied.

Estimated time: PT1M

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Find & Replace (Regex) Tool: Advanced Text Processing

Powerful browser-based Find & Replace tool with support for JavaScript regex flags, capture groups, and backreferences. Process text securely and for free.