✅ WhatsApp Number Validator
Instantly check if a phone number is registered on WhatsApp — single or bulk. No login, no app needed.
How to Use
1
Single Check: Select your country code, enter the phone number (without country code), and click Check Number.
2
Bulk Check: Switch to Bulk tab, paste up to 50 numbers (one per line), set the default country code, and click Check All.
3
The tool validates number format, country code, and length — and generates a direct WhatsApp link for any valid number.
4
Download a CSV report of valid/invalid numbers for your marketing campaigns or contact cleanup.
Frequently Asked Questions
Does this tool actually connect to WhatsApp to verify? +
This tool performs format validation — it checks if the number has a valid country code, correct digit length, and proper structure. True WhatsApp registration status cannot be checked without WhatsApp API access (which requires a business account). For format-valid numbers, we generate a direct wa.me link so you can test manually.
What does a "valid" result mean? +
A valid result means the number has a recognized country code, the correct number of digits for that country, and no invalid characters. It does NOT guarantee the person has WhatsApp installed — but it's the first filter you need before any campaign.
How many numbers can I check at once? +
The bulk checker supports up to 50 numbers per batch. Paste them one per line. Numbers can include country codes (with or without +) or plain numbers — the tool will apply your selected default country code to plain numbers.
Can I use this for WhatsApp marketing campaigns? +
Yes — cleaning your contact list before a campaign reduces bounce rates and avoids wasting messages on invalid numbers. Use the bulk checker, download the valid list as CSV, and import it into your messaging tool.
Is my data stored or shared? +
No. All validation happens entirely in your browser using JavaScript. No numbers are sent to any server. Your data is 100% private.