Text Regex Replacer.

Find and Replace with Regex. Find and replace text using regular expressions. Test patterns with live preview and support for capture groups.

Text Regex Replacer

Use $1, $2, etc. in replacement for capture groups

Use cases

Real-world uses.

Code Refactoring
Find and replace patterns in code files, rename variables, or refactor code structure.
Text Processing
Process large text files by finding and replacing patterns, formatting data, or cleaning content.
Data Extraction
Extract specific patterns from text using capture groups and replacement strings.
Format Conversion
Convert text formats, transform data structures, or reformat content using regex patterns.
Content Cleanup
Remove unwanted patterns, clean up formatting, or normalize text content.
Bulk Replacements
Perform bulk find-and-replace operations across multiple text blocks or files.
Pattern Testing
Test regex patterns before using them in scripts or applications.
Text Transformation
Transform text data for import/export, API integration, or data migration.

How it works

Four steps.

  1. 01

    Paste or upload your text that needs regex replacement.

  2. 02

    Enter your regex pattern and replacement string. Use $1, $2 for capture groups.

  3. 03

    See instant preview with matches highlighted and replacement results.

  4. 04

    Copy the replaced text or download it as a file.

Features

Key Features of Text Regex Replacer.

Replace text with regex power and precision.

  • Regex Patterns

    Full support for JavaScript regular expressions with all flags.

  • Live Preview

    See replacement results in real-time as you type your pattern.

  • Match Highlighting

    Highlight all matches in the input text for easy verification.

  • Capture Groups

    Use $1, $2, etc. in replacement string to reference capture groups.

  • Regex Flags

    Support for global (g), case-insensitive (i), multiline (m), and more flags.

  • Export Options

    Download replaced text for use in your projects.

  • Pattern Testing

    Test your regex patterns before applying replacements.

  • Statistics

    See match count and replacement statistics.

FAQ

Questions.

Can't find an answer? Send us your question.

What is a regular expression?

A regular expression (regex) is a pattern that describes a set of strings. It's used for searching and replacing text.

How do I use capture groups?

Wrap parts of your pattern in parentheses to create capture groups. Use $1, $2, etc. in the replacement string to reference them.

What regex flags are supported?

Common flags: g (global), i (case-insensitive), m (multiline), s (dotall). You can combine flags like 'gi' for global and case-insensitive.

Can I test my regex pattern?

Yes! The tool shows matches in real-time and highlights them in the input text, so you can verify your pattern before replacing.

What if my regex is invalid?

The tool will show an error message if your regex pattern is invalid. Check the syntax and try again.

How do I escape special characters?

Use backslash (\) to escape special regex characters. For example, \. matches a literal dot, \$ matches a dollar sign.

Can I replace with empty string?

Yes! Leave the replacement string empty to remove matched text entirely.

What's the difference between replace and replaceAll?

With the 'g' flag, replace() replaces all matches. Without it, only the first match is replaced.

Is my data stored?

No, all processing happens locally in your browser. Your data never leaves your device.

Is this tool free?

Yes, Text Regex Replacer is completely free to use with no limits on text size or number of replacements.

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Built by Infyways

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