Phone Number Formatter

Format phone numbers to E.164, International, and National formats. Supports 240+ countries. Powered by Google's libphonenumber.

Format any phone number instantly with one click. Phone Number Formatter is a lightweight Chrome extension that converts phone numbers into standardized formats — E.164, International, National, and RFC3966. Whether you're a developer, support agent, or anyone who works with phone numbers, this tool removes the friction of manual formatting. WHAT IT DOES Paste or type a phone number into the extension popup and instantly see multiple formatted versions. Right-click any selected phone number on a webpage and format it without leaving the page. The extension auto-detects the country from the number itself, or lets you specify a country to ensure accuracy. KEY FEATURES • E.164 Format — The global standard for phone numbers in databases and APIs • International Format — Human-readable format with country code and spacing • National Format — Local format (e.g. (415) 555-1234 for US numbers) • RFC3966 Format — tel: URI standard for web and app integration • 240+ Country Support — Works with phone numbers from virtually any country • Auto-Detect Country — Smart parsing recognizes country from the number itself • Right-Click Context Menu — Select a number on any webpage and format it instantly • Copy with One Click — All formats copy to clipboard in a single tap • No Signup Required — Zero account creation, zero tracking, zero ads • Privacy First — All processing happens locally in your browser WHO IT'S FOR • Web developers building phone number fields, APIs, or CRM integrations • Support teams managing customer contact data • Sales professionals organizing international leads • Anyone who regularly deals with phone numbers in different formats HOW TO USE IT 1. Click the extension icon → paste or type a phone number 2. Or select any number on a webpage → right-click → "📞 Format Phone Number" 3. Pick a country from the dropdown if the number is ambiguous (optional) 4. Click any format to copy it to your clipboard Powered by libphonenumber-js — the same library Google uses for phone number parsing and validation worldwide. PRIVACY No tracking. No data collection. No servers. All formatting happens entirely in your browser. Your phone numbers never leave your device. Full privacy policy: https://phonenumberformatter.app/privacy