Paste international numbers
Use country code format (E.164). We clean spaces, plus signs, and duplicates automatically.
Free browser tool · No signup
Free WhatsApp Number Checker
Check whether a phone number appears to be registered on WhatsApp before your team starts a conversation. Built for sales, support, and outreach list hygiene.
Free for light use, up to 20 numbers per day.
- Review registration status before importing an authorized contact list
- Clean CSV lists before campaigns
- Validate leads from forms and ads
- No install, no account, no credit card
How this free WhatsApp verifier works
Live WhatsApp lookup
We request the current registration status from the configured verification service.
Status with an inconclusive fallback
Results distinguish registered, not registered, invalid format, and cases the service could not verify.
Free WhatsApp number checker for sales and support teams
SkyLight Chat’s browser tool requests the current registration status for each valid international number. A result may be inconclusive, and teams still need a lawful basis and the recipient’s permission before outreach.
FAQ
Is this WhatsApp number checker really free?
Yes. It’s a free browser tool on skylightchat.com with a fair-use limit of 20 numbers per visitor per day.
Can I use this as an API in my system?
No. This page is a free public tool only. Automated scraping and third-party system integrations are blocked. For production verification and WhatsApp messaging, use SkyLight Chat plans.
What format should numbers be in?
International format with country code, e.g. 9665xxxxxxx or +213559362307. Local numbers without a country code may fail.
Need higher-volume WhatsApp verification and messaging?
This browser tool is capped at 20 numbers per day. For production workflows, approved messaging, AI replies, and a unified inbox, review the current SkyLight Chat plans.