Stable signalNo paid features detectedMedium-risk permissions

Wa2in - WA Number Checker

Provides an efficient way to check whether a WhatsApp number is enabled.

Users1KCurrent public install base

Rating4.9Store average score

Reviews177Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Wa2in - WA Number Checker Media preview

2 assets

Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start

4.86

Latest

4.86

7-day rating change

0.00

2026年7月16日2026年7月22日

Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat

00%

7-day growthFlat

00%

30-day growthGrowing

+15+1.52%

Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version21.1.16

ManifestV3

Size2.4MiB

Languages54Deutsch / English / English (United Kingdom) +51

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

WA Number Checker is an intelligent tool that can verify, check, and filter WhatsApp numbers, providing you with an efficient, convenient, and secure contact number management experience.

This extension is not only the ideal choice for checking and filtering WhatsApp phone numbers, but also can verify active WhatsApp numbers, offering comprehensive number management functions.

As the preferred WhatsApp number checker, filter, and validator extension, it provides marketing and sales companies with very practical functions, allowing easy filtering of bulk contact lists from any country/region with number ranges.

🟥 How to get started?

Simply log in to web.whatsapp.com, scan to log in, open the tool, enter the numbers you want to query, and then click "Start Checking" to quickly see if there is a bulk list of WhatsApp numbers.

🟥 Key features include:

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score4.9Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average4.9Average computed only from synced review bodies below

Reviews with text120Synced review bodies

Total ratings / reviews177Chrome Web Store public rating/review count

Store average score: 4.9. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

109

4★

3★

2★

1★

Kebaikan Dunia Akhirat2024年11月8日

GOOD

Salsabila Fatmasari2024年11月7日

waw

Mannu Sharma2024年11月5日

awesome

Siluet hitamputih2024年11月1日

Baguuuuus

Ricardo Patrick Soares Nunes2024年10月31日

perfeito para filtrar grandes quantidades de numero

Salsabila Fatmasari2024年10月29日

bagus

erkalodan2024年10月28日

juliani ayuningtyas2024年10月26日

good

Marcelo Luiz Salvestro2024年10月24日

Excellent!

putra colmitra2024年10月24日

very helpfull

Showing 120 results

1...5 6 7 8 9...12

Similar and related extensions

Review related products from the Chrome Web Store detail page.

WhatsApp™ Number Generator & Checker - ExtBoost

Workflow & Planning

Find & Verify WhatsApp Numbers! Fast WA number generator & validity checker extension for your browser.

WA Filter & Number Checker - Export verified numbers | WPPME.COM

Communication

Free WhatsApp phone number checker, validator, and lookup tool to verify if numbers are active and valid.

Bulk WhatsApp Number Checker & Validator & Search & lookup | WASBB.COM

Tools

Bulk find, verify, search, and check WhatsApp phone numbers to see if they are active.

WA Number Checker - Check & Verify WA Number

Workflow & Planning

WhatsApp number checker & filter & validator, Instantly filter and validate WhatsApp phone numbers.

Number Checker for WhatsApp – Validate, Search & Lookup

Social

Likely PaidConfidence 92Platform Paddle

Bulk WhatsApp number filter and verification — fast, secure, and privacy-first.

wstool - Free WA Bulk Number filter

Tools

PaidConfidence 55

WA Bulk Number Filter Chrome Extension is a powerful and completely free tool designed to validate multiple WA numbers quickly and…

AI product read

WhatsApp Number Verification and Bulk List Filtering

Helps users verify which phone numbers are registered on WhatsApp and filter bulk contact lists to identify active WhatsApp users, saving time for marketing and sales teams.

User logs into web.whatsapp.com via browser, opens the extension popup, enters phone numbers to check (or uploads a bulk list), clicks 'Start Checking', and views results showing which numbers are active on WhatsApp. Results can be saved to history and exported as CSV.

Target users: Marketing and sales companies / Businesses managing contact lists / Users wanting to verify WhatsApp numbers in bulk

The extension code is heavily minified and obfuscated, making it difficult to trace exact API calls and login flows. The content scripts are large (3.2MB) and minified, so grep searches may miss context. The extension relies on wa2.in backend services (sa.wa2.in) which are not fully inspectable from the source alone. The 'premium' keyword matches in locale files appear to be unrelated search terms or SEO spam, not actual paid feature references.

Monetization

No paid features detected

The extension source code does not contain any payment integration, subscription gating, or billing logic. The keyword matches for 'premium' and 'pro' in the static analysis are false positives from minified code (e.g., CSS variables, library code like Chart.js, or locale files containing unrelated search terms). The extension appears to be free to use, though the destination service wa2.in may have its own paid plans unrelated to this extension's functionality. The extension itself does not gate features behind a paywall or call payment APIs.

Confidence: 85
Payment platform: --
Source: AI / Medium
Login required: Yes
Reason: The extension's core workflow requires the user to first log in to web.whatsapp.com (scan QR code) to authenticate the WhatsApp session. The extension content scripts are injected into web.whatsapp.com and wa2.in. Without an active WhatsApp Web session, the number checking functionality cannot operate as it relies on the authenticated WhatsApp Web environment to verify numbers. The extension itself does not implement a separate login UI but depends on the destination service's authentication.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：storage

Publisher

si6427339

Independent publisher

Email: [email protected]
Phone: --
Address: --

Public contact fields are shown above. Developer portfolio pages are available on paid accounts.

View developer portfolio

Permissions

Host access