Check which numbers are on WhatsApp — in bulk
Paste or upload thousands of numbers and the checker verifies each against WhatsApp, splits the list into on/off WhatsApp, and exports CSV/TXT or saves straight into your contact book.
- Bulk verification against live WhatsApp
- Clean has / has-not lists with export
- Save results directly into contact groups
- Re-check saved lists any time
Clean lists before you campaign
Sending to dead numbers wastes quota and looks like spam. Filter first: the checker uses your linked number to verify presence on WhatsApp, so broadcasts and voice campaigns only target reachable people — better delivery, better sender health.
Any input
Paste lines or upload .txt/.csv; numbers are normalized automatically.
Exports
Download the on-WhatsApp or not-on-WhatsApp list as TXT or CSV.
Straight to contacts
Save either result set into a new or existing contact group for immediate campaigns.
Plan quotas
Monthly check quotas per plan (0 = unlimited) keep usage predictable.
Frequently asked questions
How do I check if a number is on WhatsApp?
Upload the list; the platform queries WhatsApp through your linked number and marks each entry as on or off WhatsApp within seconds to minutes depending on size.
How many numbers can I check at once?
Lists of thousands are fine; your plan sets the monthly check quota. Progress streams live and you can re-check a saved filter later.
Can I export the results?
Yes — both result sets export as .txt or .csv, and either can be saved into your contact book as a group for use in bulk message or voice broadcast campaigns.
Is checking safe for my number?
Verification uses standard contact-existence queries. As with all bulk activity, quotas and pacing keep behavior conservative.
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Learn moreReady to try it on your own number?
Create your workspace, link a WhatsApp number by QR and go live in minutes — no Meta approval, no per-message API fees.