🔍 Regex Tester & Generator
Test and generate regular expressions with live matching, pattern presets, and code snippets. 100% client-side processing.
Regex Pattern
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💻 Code Snippets
javascript
const regex = //g; const matches = text.match(regex);
python
import re regex = re.compile(r'', re.G) matches = regex.findall(text)
php
$pattern = '//g'; $matches = preg_match_all($pattern, $text, $results);
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🔍 What is Regex?
Regular expressions are patterns used to match character combinations in strings.
Common Uses:
- Data validation
- Text processing
- Search and replace
- Pattern matching
🏷️ Common Flags
g - Global (find all matches)
i - Case insensitive
m - Multiline
s - Dot matches newline
u - Unicode
y - Sticky
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💡 Pro Tip
Use anchors (^$) for exact matches, quantifiers for repetition.