📞US Phone Number Formatter
Normalize phone numbers of any format to a clean US standard like (XXX) XXX-XXXX. Useful for cleaning up Excel/CRM/contact data, handling area codes, and converting to international +1 format.
🔒 Browser-based✓ No watermark✓ No signup
How to use
- 1Enter one number or multiple numbers on separate lines.
- 2Each is normalized to the standard format automatically.
- 3Copy the cleaned results into Excel or your database.
FAQ
Does +1 international format work?+
Yes. It converts between +1 XXX-XXX-XXXX and the national (XXX) XXX-XXXX format both ways.
Are area codes handled?+
Yes. 3-digit US area codes are detected and formatted correctly.
Numbers without separators?+
Yes — digits, spaces, dashes, dots, and parentheses are all cleaned up automatically.
Can I process many numbers at once?+
Yes. Enter multiple numbers separated by line breaks and they are all normalized.
Is invalid input flagged?+
Numbers that do not match the standard 10-digit US length are flagged with a warning.
Any privacy concern?+
All processing happens in your browser. Nothing is uploaded.