Validate and format phone numbers to E.164, international, and national formats. Single or bulk validation with instant CSV export.
Validate and format phone numbers to E.164 and other formats
Supports US, India, UK, Canada, Australia, Germany, France, Japan, China, Brazil, UAE, Singapore
International standard for phone numbers. Used by Twilio, AWS, and most telephony APIs.
+14155551234Human-readable format with country code and spacing.
+1 (415) 555-1234Local format without country code, as dialed within the country.
(415) 555-1234URL format for click-to-call links in HTML.
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E.164 format conversion
International formatting
National formatting
RFC 3966 tel: URI
Bulk validation
CSV export
12+ countries supported
No signup required
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