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WAChecker - Bulk check WhatsApp numbers online in seconds

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WAChecker is a Chrome extension for checking WhatsApp registration status in bulk, filtering results, and exporting contact lists. After logging in to WhatsApp Web, users can paste a number list or import an Excel file, run verification, and export the results they need. Key features include bulk verification, result filtering, duplicate detection, configurable checking intervals, and task history. Number lists and task results are processed within the browser extension and stored locally.

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Hi Product Hunt! We built WAChecker to make WhatsApp contact checking easier for businesses that work with large contact lists. Instead of checking numbers one by one, you can upload a list and quickly identify which numbers are available on WhatsApp before starting an outreach or marketing campaign. We'd love to hear how you currently validate WhatsApp contacts, and what you'd like us to improve.