Phone Number Regex
Phone number regex patterns for international E.164, US and UK numbers, tested live. Free and private: runs in your browser.
Pick a format and paste numbers to test them.
Runs entirely in your browser. Nothing you paste is uploaded or stored.
Use cases
- Find a syntax error before the build or deploy fails.
- Check config files in code review.
- Learn the rules your linter enforces.
Frequently asked questions
How should I store phone numbers?
In E.164 format (+14155552671): one canonical form per number makes de-duplication and SMS APIs simple.
Is the Phone Number Regex free?
Yes. It is free with no sign-up, and it runs entirely in your browser, so your input is never uploaded or stored.
What should I do with the issues it reports?
Fix high-severity items first; they usually break builds or deployments. Lower-severity items are style and best-practice suggestions.
Related tools
Checking one snippet is a start. Scan your whole repository for free with CodeInspector.