Need a regular expression but not sure how to write one? Pick a common pattern below to get a ready-made regex with an explanation, then test it against your own sample text.
How to Use
- Choose the kind of pattern you need from the list.
- Read the generated regex and its plain-English explanation.
- Type sample text and select Test Pattern to check it.
- Use Copy Pattern to copy the regex for your project.
Key Features
- Eight ready-made patterns for common validation tasks.
- Plain-English explanation of each pattern.
- Live testing against your own sample text.
- One-click copy to clipboard.
- Free with no sign-up.
FAQs
What is a regular expression?
A regular expression is a search pattern used to check whether text matches a particular format, such as an email address.
Can I use these patterns in any language?
The patterns follow common regex syntax supported by JavaScript, Python, PHP and most other languages.
Are the patterns guaranteed to be perfect?
They cover the most common cases. For strict validation, test against your own data first.
Do I need to escape the pattern?
When embedding in code, remember to escape backslashes if your language requires it.
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