Regex Generator
Build a regular expression from guided choices without memorizing syntax. Everything runs on your device — fast, free, and private.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
match=email, flags=g,i
Example Output
/[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}/giHow to Use
- 1Fill in the input and/or set "More settings" as needed.
- 2Click the Generate button (or press Ctrl+Enter).
- 3Copy the result with the Copy button.
About Regex Generator
The Regex Generator builds a regex pattern for you based on what you want to match: email, URL, IPv4, date, time, phone, hex color, UUID, slug, username, digits, words, and more — or a custom character set. Add ^...$ anchors, word boundaries \b, a capture group, and flags (g, i, m, s, u).
The result is a ready-to-use regex literal plus a JavaScript snippet. It CREATES a new pattern (unlike the Find & Replace tools in the Text category, which APPLY a pattern to your text).
FAQ
Is any data sent to a server?
No. Regex Generator runs entirely in your browser — everything is generated locally and never uploaded to our servers.