Phone Number Formatter

Phone Number Formatter instantly converts any phone number to E.164, International, National, and RFC3966 (tel:) formats — directly in your browser, with no data ever leaving your device.

HOW TO USE
• Click the extension icon and type or paste any phone number
• Or: select a phone number on any webpage → right-click → "📞 Format Phone Number" — the extension opens pre-filled automatically

FEATURES
✓ All four international formats in one click
· E.164 (+14155550132) — for APIs, SMS gateways, Twilio, databases, CRMs
· International (+1 415 555 0132) — for websites, email signatures, business cards
· National ((415) 555-0132) — for domestic display
· RFC3966 (tel:+1-415-555-0132) — for HTML click-to-call links and vCards

✓ 240+ countries supported — powered by Google's libphonenumber (used by Google, WhatsApp, Twilio, Apple)
✓ Auto-detects country code from the number itself
✓ Remembers your last-used country for faster repeat use
✓ Validates the number and shows phone type (mobile, landline, VoIP)
✓ One-click copy for each format
✓ Right-click context menu — format any number you see on a webpage
✓ Handles RFC3966, E.164, IDD (00XX), national, and messy inputs

PRIVACY FIRST
All formatting happens locally in your browser using JavaScript — your phone numbers never leave your device. The extension makes zero network requests. No analytics, no tracking, no telemetry.

Permissions used:
• contextMenus — to add the right-click "Format Phone Number" menu item
• storage — to remember ynce (stored locally, never transmitted)
WHY E.164 MATTERS If you work with Twilio, S SNS, Salesforce,HubSpot, or any SMS API — E.164 is the required format. A wrong format means failed messages, misroutecords. This extensionnormalises any number in one click.

For bulk formatting of 100+ numbers at once, visit phonenumberformatter.app — the free full-featured we