Verify which phone numbers have active WhatsApp accounts before you send a message.
The phone number to check (e.g., 5511999999999)
Results to deliver
300 creditsThis agent actively searches live listings — results may vary. You are only charged for what is delivered, up to this number.
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Pricing
Check if a phone number is registered on WhatsApp. Provide a single phone number to see if an account exists, helping you clean marketing lists and verify contact data before outreach.
Sending marketing or support messages to phone numbers that don't have a WhatsApp account is a waste of resources and can harm your business account's reputation. This tool solves that problem by checking a single phone number to confirm if it has an active WhatsApp account. ### Who is this for? This validator is built for sales teams, marketing agencies, customer support departments, and any business that uses WhatsApp for communication. It helps you maintain clean contact lists, improve message deliverability, and avoid sending messages to dead numbers. ### How it helps your business By verifying numbers beforehand, you ensure your outreach efforts are focused on actual users. This not only improves campaign performance metrics but also protects your WhatsApp Business account from being flagged for sending messages to a high volume of non-existent contacts. The output tells you two key things: whether the number format is valid (`isValid`) and, more importantly, whether an account actually exists on WhatsApp (`exists`).
Provide the phone number you want to verify, including its country code (e.g., 5511999999999).
Run the tool.
The tool queries WhatsApp to determine if an account is registered to that number.
Review the output data to see if the number is valid and if it exists on WhatsApp.
Download the results in your preferred format.