Describe what you want to match in plain English. Get a tested regex pattern with explanation and code examples. Free — no signup needed.
Regular expressions are one of the most powerful tools in programming — and one of the hardest to write correctly. A single misplaced character can change what your pattern matches entirely.
Instead of spending 30 minutes on Stack Overflow trying to craft the perfect regex, just describe what you want in plain English. Our AI generates a tested, explained pattern in seconds. It handles edge cases you might not think of and provides ready-to-use code snippets.
Every generated regex comes with a detailed breakdown explaining what each part does. Over time, you'll start recognizing patterns and writing regex faster on your own. It's like having a regex tutor that also does your work.
Get code examples for JavaScript, Python, Java, C#, Go, PHP, Ruby, and more. The generated patterns use standard syntax compatible with all major regex engines.
No signup, no API key, no hidden costs. Generate as many regex patterns as you need — 10 per day, resets at midnight. Each generation includes the pattern, explanation, examples, and code snippets.
Describe what you want to match in plain English — like "email address" or "US phone number" — and the tool generates the regex instantly. You can also test the pattern against sample text right on the page to confirm it works.
The generated patterns use universal regex syntax compatible with JavaScript, Python, PHP, Java, Ruby, and most other languages. Character classes, quantifiers, and anchors are standard across all major regex engines.
A standard email regex is ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$. Use the generator to get this pattern pre-built and test it against your email samples instantly.
Yes, the built-in tester highlights all matches in real time as you type. You can see match counts, capture groups, and toggle flags like case-insensitive or multiline mode.
Common patterns include email, phone numbers, URLs, IP addresses, postal codes, dates, and credit card numbers. The generator has prebuilt patterns for all of these that you can copy and customize.
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