Regex Replace Tool

Regex Replace Tool | Kloudbean Developer Tools

🔍 Regex Replace Tool

Find and replace text using regular expressions with powerful pattern matching and real-time preview.

Quick Patterns:

Numbers (\d+) Words ([a-zA-Z]+) Emails Whitespace (\s+) Wrap Words Phone Format Add Bullets Remove Duplicates

Regex Pattern:

Replace With:

Flags:

Global (g)

Case Insensitive (i)

Multiline (m)

Dot All (s)

Pattern Preview: Enter a pattern to see matches

Input Text:

Output Text:

How to Use the Regex Replace Tool

Enter your regex pattern and replacement text, select appropriate flags, then input your text to process. Use the quick patterns for common use cases or test your pattern before applying it to large text blocks.

Common Regex Patterns for Developers

Master these essential patterns:

\d+ - Matches one or more digits (numbers)
\w+ - Matches one or more word characters (letters, digits, underscore)
\s+ - Matches one or more whitespace characters
[a-zA-Z]+ - Matches one or more letters only
^.+$ - Matches entire lines
(\w+)@(\w+\.\w+) - Captures email parts for replacement

Regex Flags Explained

Understanding flags enhances your pattern matching:

Global (g) - Replaces all matches, not just the first one
Case Insensitive (i) - Ignores case when matching
Multiline (m) - ^ and $ match line breaks within the string
Dot All (s) - . matches newline characters too

Advanced Development Use Cases

Perfect for data processing tasks in cloud applications:

Log file processing and cleanup for cloud monitoring systems
Data transformation before database insertion
API response formatting and sanitization
Configuration file updates and environment variable replacement

Frequently Asked Questions

Q. How do I use capture groups in replacement?
Use $1, $2, etc. in your replacement text to reference captured groups from your pattern. For example, pattern (\w+)\s+(\w+) with replacement $2 $1 swaps two words.

Q. What if my regex pattern has an error?
The tool will show an error message explaining the issue. Use the "Test" button to validate your pattern before applying it to large text blocks.

Q. Can I save my results?
Yes! Use the "Save" button to download your processed text as a file, or copy it to clipboard for immediate use.

Q. How do I test complex patterns?
Use the pattern preview feature and test button to see matches before replacement. Start with simple patterns and build complexity gradually.

Need robust text processing for your applications? Deploy with Kloudbean Today!

Regex Replace Tool