Format raw telephone numbers into industry-standard formats. Select a country or use auto-detect, paste your number, and instantly get National, International, E.164 (database/Twilio standard), and RFC 3966 TEL URI formats.
Key Features of Phone Number Formatter
- Country-Specific Styling Applies exact styling and validation rules depending on the selected country code.
- E.164 Standardization Compiles entries directly into standardized E.164 format, stripping trunk prefixes and spaces.
- Multiple Layout Outputs Generates clean National, International, and TEL URI outputs on the fly.
Phone Number Formatter Examples
Standard US Number
Format raw digits as a US phone number.
Input
4155552671Output
National: (415) 555-2671, E.164: +14155552671How to Use Phone Number Formatter
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1. Enter a Phone Number
Type or paste a phone number in any format, whether with or without country code, spaces, or punctuation.
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2. Tool Formats the Number
The formatter normalizes the number to standard international styles.
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3. Copy the Formatted Number
Click Copy next to the format you need (E.164, national, international) to save it.
Common Use Cases for Phone Number Formatter
- Normalizing Contact Databases Prepare customer or marketing address list sheets with structured, uniform phone formats.
- Web Form Parsing Validate and clean raw mobile entries submitted by international users on checkout pages.
- Cold Calling Automation Normalize dial numbers to ensure compatibility with outbound dialling or CRM systems.
The Technical Details
Employs a sandboxed JS wrapper of Google’s libphonenumber module to parse metadata blocks locally.
Frequently Asked Questions
Which countries are supported?
The tool supports phone number formats for all countries using the libphonenumber standard.
What is E.164 format?
E.164 is the international standard format: a plus sign followed by the country code and subscriber number with no spaces, e.g. +14155552671.
Is any data sent to a server?
No. All formatting runs in your browser; nothing is ever uploaded.
Can I include extensions?
Extensions can be appended manually after the formatted number using the standard 'ext.' notation.