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Description
Verify WhatsApp numbers in bulk and download Excel, CSV, or JSON results for easier contact review and campaign preparation. Bulk Number Checker for wa helps you check WhatsApp accounts. Enter phone numbers or user IDs, start a batch, and download the results in Excel, CSV, or JSON. The extension brings repetitive account checks into a convenient browser workflow. Use this bulk WhatsApp number checker to identify numbers linked to existing accounts and prepare contact lists for marketing, sales, or customer follow-up. Open the downloaded file to review results, organize your records, and decide which contacts to include in your next campaign. Excel works well for spreadsheet review, CSV fits everyday data transfers, and JSON provides structured results for your own tools. Choose the format that suits the next step in your work. How to use 1. Click the extension icon to open the main interface. 2. Enter or paste the phone numbers or user IDs you want to check. 3. Click Check numbers. WhatsApp Web opens and the batch check begins. Sign in if prompted. 4. Download the completed results in Excel, CSV, or JSON. Data Privacy Account data passes only between your device and WhatsApp. We do not access or store your account information or details about the accounts you check. In-App Purchases Our Extension is a freemium product with a nominal subscription fee. Free supports up to 5 verifications per batch. Professional supports up to 10,000. The exact cost is displayed in the extension's interface, ensuring transparency and ease of understanding. Disclaimer This software is a third-party browser extension independently developed by an unaffiliated developer. This software is not an official product of Meta Inc.