WA Number Checker

Check phone lists against WhatsApp Web locally and export results.

WA Number Checker helps you check whether phone numbers in a list are available on WhatsApp Web, then export the results for follow-up work. Main features: - Check phone numbers from manual input or an imported Excel file. - Preserve the original Excel rows and append result columns when exporting. - Sort exported rows so numbers with WhatsApp appear first. - Copy all numbers found on WhatsApp from the latest check. - Keep local history of previous checks and export a past result when needed. - Runs inside WhatsApp Web and stores data locally in your browser. Privacy and data use: - The extension does not upload your phone list or Excel file to the developer's server. - The extension uses Chrome local storage to save language settings, current progress, logs and check history. - The extension only runs on `https://web.whatsapp.com/`. Important: This extension is not affiliated with, endorsed by, sponsored by, or officially connected with WhatsApp LLC, Meta Platforms, Inc., or any of their subsidiaries or affiliates. WhatsApp is a trademark of its respective owner.