Developer toolkit

Phone number testing tools

Validate formats, inspect country calling codes, test regular expressions and create disposable fixtures without uploading customer data.

Validate

Phone number validator

Check country code, digit length and basic national structure, then copy the normalized E.164 value.

Validate a number
Reference

Country calling codes

Search by country, calling code or full international number, then inspect patterns, examples and guides.

Look up a code
QA

Phone regex tester

Run a JavaScript regular expression against phone-number fixtures and inspect every match.

Test a regex
Fixtures

Bulk test-data generator

Create up to 100 country-specific fixtures and export them as plain text, JSON or CSV.

Generate fixtures
Parse

Phone parser and E.164 formatter

Detect calling codes from international input or convert national input into E.164, national and RFC 3966 formats.

Parse a number
Data

Country format dataset

Download calling codes, national patterns, examples and official-source links as JSON or CSV.

Get the dataset
Embed

Phone format widget

Add the 31-country calling-code and E.164 reference to another site with one iframe.

Embed the widget

Designed for responsible testing

These tools perform structural checks and create format-accurate fixtures. They do not verify subscriber identity, reachability, carrier ownership or SMS capability. Never call or text generated values.

Read the responsible-use policy