Find and Replace (Regex)
Find and replace using regular expressions
Input Text
Paste or type your text here
Options
Output Text
Processed text will appear here
How It Works
Find and replace using regular expressions
Use the power of regular expressions to find and replace complex text patterns. Match patterns like email addresses, phone numbers, dates, or any structured text and transform them in a single operation. Supports capture groups, lookaheads, and all standard regex syntax.
Key Features
- ✓Full regular expression pattern support
- ✓Capture group references ($1, $2, etc.) in replacements
- ✓Global and case-insensitive flags
- ✓Pattern validation and error reporting
- ✓Real-time result preview
How to Regex Find and Replace Online
- 1
Paste your text
Enter the text to process.
- 2
Enter regex pattern
Write a regular expression and replacement string.
- 3
Apply and copy
Click replace and copy the transformed result.
Common Use Cases
- •Reformatting dates from MM/DD/YYYY to YYYY-MM-DD
- •Extracting and restructuring structured data
- •Cleaning log files by removing timestamp patterns
- •Transforming CSV column orders with capture groups
Frequently Asked Questions
What regex syntax is supported?▼
JavaScript regular expression syntax including capture groups, lookaheads, character classes, quantifiers, and alternation.
How do I reference capture groups?▼
Use $1, $2, etc. in the replacement string to reference captured groups from the pattern.