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.
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Text Regex Replacer
Use $1, $2, etc. in replacement for capture groups
Examples of Real-World Usage
8 real-world examples
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.
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.
How to Use
Simple 4-step process
Step 1
Paste or upload your text that needs regex replacement.
Step 2
Enter your regex pattern and replacement string. Use $1, $2 for capture groups.
Step 3
See instant preview with matches highlighted and replacement results.
Step 4
Copy the replaced text or download it as a file.
Frequently Asked Questions
Everything you need to know about our process, pricing, and technical capabilities.
See Full FAQA regular expression (regex) is a pattern that describes a set of strings. It's used for searching and replacing text.
Wrap parts of your pattern in parentheses to create capture groups. Use $1, $2, etc. in the replacement string to reference them.
Common flags: g (global), i (case-insensitive), m (multiline), s (dotall). You can combine flags like 'gi' for global and case-insensitive.
Yes! The tool shows matches in real-time and highlights them in the input text, so you can verify your pattern before replacing.
The tool will show an error message if your regex pattern is invalid. Check the syntax and try again.
Use backslash (\) to escape special regex characters. For example, \. matches a literal dot, \$ matches a dollar sign.
Yes! Leave the replacement string empty to remove matched text entirely.
With the 'g' flag, replace() replaces all matches. Without it, only the first match is replaced.
No, all processing happens locally in your browser. Your data never leaves your device.
Yes, Text Regex Replacer is completely free to use with no limits on text size or number of replacements.
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