E.164 phone formatter — normalize & validate (local)
Paste a phone number to normalize to E.164, international, national, and RFC3966 formats with country and line-type hints — or bulk-check a list. Powered by libphonenumber metadata in your browser; nothing uploaded.
Frequently asked questions
No. Phone parsing runs entirely in your browser with embedded libphonenumber metadata; numbers are not uploaded or stored. Nothing is sent to LocalTools servers for processing.
No. libphonenumber validity means the number matches region length and pattern rules. It does not prove the line is assigned, accepting calls/SMS, or that you may contact it.