What is Number Validator?
Validate phone numbers and build correct wa.me links before you send or publish.
Launch the tool here: Number Validator →
How to use Number Validator
- 01
Select country
Choose the country for the mobile number you are validating.
- 02
Enter the phone number
Type digits only — omit leading zero and country code.
- 03
Review validation results
See if length and format match typical rules for that country, plus the full E.164 number.
- 04
Copy the wa.me link
If valid, copy the ready-to-use click-to-chat link for testing.
Who is this tool for?
Marketers & sales
Quick WhatsApp links, QR codes, and message templates without installing software.
Small businesses
Free utilities for customer chat, PDF invoices, and social sharing.
Developers & SEO
Minifiers, formatters, and sitemap helpers for faster site work.
Frequently asked questions
Can this check if a number is on WhatsApp?
This tool validates format only. To confirm registration, open the wa.me link — WhatsApp will show if the number exists.
Should I include the country code?
Select country in the picker; enter the local number without the + prefix.
Why does validation fail for a real number?
Some countries have variable lengths or special prefixes. Double-check you removed the trunk zero.
Is my number stored?
No. Validation runs locally in your browser.