Phone Number Formatter & Normalizer

Paste a list of phone numbers (one per line), choose a default country code and output format, and get a clean normalized list with invalids flagged.

Phone numbers (one per line)

Default country code (for numbers without +)

Output format

Runs entirely in your browser. No data is uploaded or stored.

How it works

STEP 1

Enter phone numbers one per line — mixed formats, country codes, junk characters all accepted.

STEP 2

Select E.164 (+12025551234) or national format, and pick a fallback country code for numbers without one.

STEP 3

Get a clean output with valid numbers normalized and invalid ones flagged. Copy or download as CSV.