You have the number 06 12 34 56 78 and want to know if it is on WhatsApp. Pick France, paste it, and the tool formats it to +33612345678. Tap Check on WhatsApp: a chat opens if the number is registered, or WhatsApp tells you it is not.
Free WhatsApp number checker
Check if a phone number is on WhatsApp. Format the number, then verify it directly through WhatsApp in one tap. No signup, nothing stored.
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Example and tips
- WhatsApp itself is the only reliable source. Any tool promising an instant bulk check is guessing or scraping, and risks bans.
- Opening the chat does not message or notify the person. You only contact them if you choose to send something.
- If the chat opens with no photo or name, the number is still on WhatsApp, just with privacy settings switched on.
Kanal
What is Kanal?
Kanal turns WhatsApp into a sales channel for Shopify stores: abandoned cart recovery, order updates, campaigns to your segments, an AI chatbot and a shared inbox, with revenue tracked per message.
+90%open rate5/5on the Shopify App StoreFrom €89per month
See WhatsApp for Shopify in detailAbandoned cart flowFincut · WhatsAppLive
- Checkout abandonedTech T-shirt · Black, M
- Wait 1 hourSmart delay, quiet hours respected
- WhatsApp reminderProduct photo · 2 buttons
- Customer replyAnswered by the AI agent
- Order recovered#1042 · Paid in Shopify
Recovered this month€12,445.20
Your Shopify store on WhatsApp in 15 minutes
Leave your email and store address: a Kanal expert shows you the WhatsApp flows that pay for your catalog, cart recovery, order updates and campaigns.
How it works
Check if a phone number is on WhatsApp. Format the number, then verify it directly through WhatsApp in one tap. No signup, nothing stored.
- 1
Pick the country
Select the country the number belongs to so it can be put in the right international format.
- 2
Enter the number
Type or paste the phone number in any format. The tool cleans and formats it for WhatsApp automatically.
- 3
Check on WhatsApp
Tap the button: WhatsApp opens on that number and tells you instantly whether it is registered.
Frequently asked questions
How do I know if a number is on WhatsApp?
Enter the number and tap Check on WhatsApp. If WhatsApp opens a chat, the number is registered. If it shows a message that the number is not on WhatsApp, it is not.
Can I check numbers in bulk?
No. WhatsApp has no official API to validate numbers, and bulk-checking through unofficial tools violates WhatsApp's terms and gets numbers banned. This tool checks one number at a time, safely, through WhatsApp itself.
Is the result accurate?
Yes, because the check is done by WhatsApp directly, not by guessing. WhatsApp is the only source that truly knows whether a number is registered.
Does the person get notified?
No. Opening the chat does not send anything and does not notify the other person. A message is only sent if you actually send one.
Is my data stored?
No. The number is formatted entirely in your browser. Nothing is sent to a server or saved.