3 items
Verify WhatsApp accounts in bulk with one click. Download Excel, CSV, or JSON results for marketing workflows. Number Checker for wa is a bulk WhatsApp number checker built for browser-based verification. It tests whether multiple user IDs or phone numbers are available on the service and replaces repeated manual lookups with a single workflow through WhatsApp Web. It is designed for people who maintain permission-based contact lists for customer support, sales, operations, or data review. The extension accepts a group of identifiers, opens the web client when a check starts, and processes the list. This helps reduce repetitive work during both quick checks and larger verification tasks. How to use 1. Open the extension by selecting its icon in the browser toolbar. 2. Enter or import the user IDs or phone numbers you want to check. 3. Click Check numbers. The web client opens automatically and begins the batch check. Data privacy User-provided data is transferred only between the user's device and the service website. The developer does not access or store user account information or details about the accounts checked. Use the extension only with data you are authorized to process and follow applicable privacy requirements. In-App Purchases Our Extension is a freemium product with a nominal subscription fee. With a paid subscription, you can verify Up to 10,000 numbers Per Batch, and receive premium support. The exact cost is displayed in the extension's interface, ensuring transparency and ease of understanding. Disclaimer Number Checker for wa is an independent browser extension and is not affiliated with or endorsed by WhatsApp or Meta.
Sep 7, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.