New: save your first 35 contacts free — no card needed.
Chrome extension for WhatsApp Web

The auto WhatsApp number saver that syncs straight to Google Contacts.

If you’re manually saving every new WhatsApp number, LeadSync can scan visible numbers from your WhatsApp Web chat list or an opened group-member list when you choose Scan & Save. It saves new numbers straight into Google Contacts — with a name prefix, auto-sequencing, and duplicate detection. They sync to your phone automatically.

Current scope: phone numbers visible in the WhatsApp Web chat list or an opened group-member list. Hidden numbers and message sending are not supported.

  • Read-only, on your device
  • Automatic duplicate detection
  • Free for your first 35 contacts
No duplicates
web.whatsapp.comScanning
+91 98••• ••210Lead 001
+91 73••• ••984Lead 002
+91 98••• ••210· already savedSkipped
4 numbers scanned2 new saved
Google ContactsOn your phone
LLead 001+91 98••• ••210
  • Read-onlyNever sends messages
  • On your deviceNo contact data sent to LeadSync
  • Google People APIYour own sign-in
  • Syncs to phoneAndroid & iPhone
See it in action

Watch LeadSync save unknown chat numbers in one click

See the WhatsApp Web chat-list workflow to Google Contacts — group-member lists are also supported in version 1.3.0.

Accessible demo summary

  1. Open WhatsApp Web and connect the Google account that should receive contacts.
  2. Display the chat list or an opened group-member list, then choose Scan & Save.
  3. LeadSync checks visible numbers, skips duplicates, applies the chosen naming sequence, and creates new Google Contacts.
  4. The result reports scanned, duplicate, saved, and failed counts; phone visibility then depends on normal Google Contacts sync.

This is an accessible workflow summary, not a verbatim transcript. The current YouTube video does not expose captions.

Security & privacy

Your data flows straight to your own Google account

Contact scanning stays in the browser and selected contacts go to Google. Licensing, checkout, and consented website analytics are separate services.

On-device scanning

Numbers are read and processed in your browser. They never touch a LeadSync server.

Saved via Google People API

Contacts are written using your own Google sign-in — the same API Google apps use.

Read-only, always

LeadSync only reads what's visible on screen. It never sends messages on your behalf.

How your data flows

WhatsApp Web
Your browser
Your Google Contacts

This diagram shows the contact-data path. LeadSync’s separate licensing backend does not receive contact names or phone numbers. Read the Privacy Policy →

Features

Everything you need to turn chats into contacts

Built for anyone who collects leads and customers through WhatsApp Web. This automatic WhatsApp number saver handles scanning, naming, and syncing.

Straight to Google Contacts

No CSV to import. Contacts appear in your Google account and can sync to your phone through Google Contacts.

Automatic scanning

Open your chat list or a group's member list on WhatsApp Web and LeadSync finds visible phone numbers for you.

Duplicate detection

Numbers already in your Google Contacts are skipped automatically, so you only ever save what's new.

Custom prefix & sequencing

Name saved contacts your way — a custom prefix plus an auto-incrementing sequence number.

Read-only & private

Scanning happens on your device. We run no servers that receive, store, or process your contacts.

Works with your phone

Via the Google People API, saved contacts sync to Android and iPhone automatically.

How it works

From WhatsApp chat to Google Contact in four steps

No manual copy-pasting, no spreadsheets — install once and scan.

  1. 1

    Install LeadSync

    Add the free extension to Chrome and open WhatsApp Web.

    Installing the free LeadSync auto WhatsApp number saver Chrome extension
  2. 2

    Connect your Google account

    Sign in to the Google account where contacts should be saved.

    Automatic WA number saver connecting to Google Contacts via People API
  3. 3

    Open your chat list, hit Scan & Save

    LeadSync scans the open chat list or group-member list and saves the new numbers it can see.

    Auto WhatsApp number saver scanning unknown chat contacts
  4. 4

    New numbers appear in Google Contacts

    They sync to your phone automatically — nothing to import.

    Automatic WA number saver saving a contact to Google Contacts

Version 1.3.0 scans the WhatsApp Web chat list or an opened group-member list. It can save only phone numbers that WhatsApp Web renders visibly.

The problem

Still saving WhatsApp numbers one by one?

You collect leads in chats, then lose an afternoon typing each number into Contacts — hoping you didn't add the same person twice. An auto WhatsApp number saver eliminates all of that.

Doing it by hand

  • Typing every number into Contacts, one by one
  • Losing track of who you've already saved
  • Exporting a CSV you then have to import somewhere
  • Worrying about where your data actually goes

With LeadSync

  • New numbers saved straight to Google Contacts
  • Duplicates detected and skipped automatically
  • No files — contacts sync to your phone directly
  • Read-only scanning that never leaves your device
Before & after

Not another CSV export

LeadSync saves WhatsApp numbers straight into your Google Contacts — and they sync to your phone automatically.

web.whatsapp.com

From WhatsApp Web

  • Unsaved chat contacts
  • Chat list numbers
  • Unknown numbers on screen
contacts.google.com

Into Google Contacts

  • Named with your prefix
  • Auto-sequenced
  • Synced to your phone
What gets saved

Exactly what LeadSync writes to each contact

Honest expectations, set upfront — here's what lands in Google Contacts.

Phone number
International format, with the correct country code.
Name
Your custom prefix + an auto sequence number (e.g. Expo-Lead 001).
Duplicate check
Skipped automatically if the number already exists in your contacts.
Source
Only numbers visible in your open WhatsApp Web view.

LeadSync performs read-only scanning of what’s on your screen and never sends messages.

Who it's for

Built for people who collect numbers in WhatsApp

If your leads live in your WhatsApp chats, LeadSync turns them into a synced contact list.

Real-estate & property agents

Capture unsaved buyer and seller numbers from your WhatsApp chats.

Resellers & D2C sellers

Turn unsaved customer chat numbers into a clean, synced contact list.

Coaches & course creators

Save unsaved student and client numbers without typing a single one.

Recruiters & agencies

Pull unsaved candidate numbers straight from your WhatsApp chats.

Event & community admins

Move visible unsaved attendee chat numbers into Google Contacts without repeated manual entry.

Insurance, loan & field sales

Build a synced prospect book that's always on your phone.

Comparison

LeadSync vs. the alternatives

Compare direct Google Contacts saving with file-based exports and manual entry. Features of third-party CSV tools vary by product.

Saves directly to Google Contacts

LeadSync
Yes
CSV / Excel
File only
By hand
Yes, but slow

Syncs to your phone automatically

LeadSync
Yes
CSV / Excel
No
By hand
Yes

Duplicate detection

LeadSync
Automatic
CSV / Excel
Partial
By hand
None

Custom naming & sequence

LeadSync
Yes
CSV / Excel
No
By hand
Manual

On-device & private

LeadSync
Yes
CSV / Excel
Varies
By hand
Yes
Free to start

Start 100% free — save your first 35 contacts, no card required.

Try the full workflow on the free tier. Upgrade to lifetime access only when you need to save more.

Pricing

Start free. Upgrade once, keep it for life.

No subscriptions — pay a one-time fee for the number of Google accounts you need. Each account is locked to one WhatsApp number.

Start hereFree
₹0/ forever

Save up to 35 contacts · no card required. Try the full workflow, then upgrade only when you need more.

  • Save up to 35 contacts, free
  • Automatic duplicate detection
  • Custom name prefix & sequencing
  • Saves straight to Google Contacts
Starter
₹499/ one-time

1 account · 1 WhatsApp number

  • Unlimited contact saves
  • Custom name prefix & sequencing
  • Automatic duplicate detection
  • 1 Google account, locked to 1 WhatsApp number
Get Starter
Most popular
Growth
₹1999/ one-time

5 accounts · 5 WhatsApp numbers

  • Unlimited contact saves
  • Custom name prefix & sequencing
  • Automatic duplicate detection
  • 5 Google accounts — 1 WhatsApp number each
Get Growth
Pro
₹2499/ one-time

7 accounts · 7 WhatsApp numbers

  • Unlimited contact saves
  • Custom name prefix & sequencing
  • Automatic duplicate detection
  • 7 Google accounts — 1 WhatsApp number each
Get Pro
Scale
₹2999/ one-time

10 accounts · 10 WhatsApp numbers

  • Unlimited contact saves
  • Custom name prefix & sequencing
  • Automatic duplicate detection
  • 10 Google accounts — 1 WhatsApp number each
Get Scale

Secure checkout via Razorpay · 3-day refund window · you'll enter each account's Google email and WhatsApp number on the next step.

Trust, not theatrics

No invented reviews. Just how LeadSync actually works.

We'll feature genuine Chrome Web Store reviews here as they come in — never fabricated ones.

Read-only

Never sends messages

On your device

No contact data sent to LeadSync

Google People API

Your own sign-in

Syncs to phone

Android & iPhone

Used LeadSync? Leave an honest review.

Rate us on the Chrome Web Store
Works with

Saved once, everywhere your Google account is

Because contacts live in Google — not a file — they show up on every device signed in to your account.

Google Contacts
Android
iPhone / iOS
Any CRM that imports from Google
FAQ

Frequently asked questions

Can’t find what you’re looking for? Email us.

What is an auto WhatsApp number saver?

An auto WhatsApp number saver detects visible phone numbers in WhatsApp Web and saves them without manual typing. LeadSync scans the chat list or an opened group-member list and writes new numbers directly to Google Contacts, where they can sync to your phone.

What's the difference between an auto WA number saver and a manual save?

An auto WA number saver scans and saves numbers instantly, while manual saving means typing each number into your phone one at a time. With LeadSync, you click Scan & Save once and every unsaved chat number goes straight to Google Contacts — no copy-pasting, no CSV.

How does an automatic WhatsApp number saver work?

An automatic WhatsApp number saver reads the phone numbers visible on your WhatsApp Web screen, checks which ones are already in your Google Contacts, and saves only the new ones — complete with a custom name prefix and sequence number. LeadSync scans in your browser; contact data is sent only to your own Google Contacts, not to LeadSync's licensing backend.

What's the best automatic WA number saver for Chrome?

LeadSync is an automatic WA number saver for Chrome that saves directly into Google Contacts instead of using a CSV file as its primary workflow. Contacts can sync to Android and iPhone through Google Contacts. It's free for your first 35 contacts with no card required.

Does LeadSync save WhatsApp numbers to Google Contacts?

Yes. LeadSync scans the numbers visible on WhatsApp Web and saves new ones directly into your Google Contacts via the Google People API. From there they sync to your phone automatically — there's no CSV to import.

Is there a free version?

Yes — you can save up to 35 contacts for free, with no card required. One-time paid plans start at ₹499 for unlimited saves.

Does my WhatsApp data get sent to your servers?

No. All scanning happens locally in your browser. Numbers go only to your own Google Contacts via Google's own API, using your own Google sign-in. We don't operate servers that receive, store, or process your contacts or WhatsApp data.

Is LeadSync affiliated with WhatsApp or Google?

No. LeadSync is an independent, unofficial tool and is not affiliated with, endorsed by, or connected to WhatsApp Inc., Meta Platforms, or Google LLC.

Which Google account do contacts get saved to?

Whichever Google account you connect in the extension. On paid plans your license is bound to the exact emails you enter at checkout and can't be reassigned afterwards, so double-check each address before paying. Each account is also locked to one WhatsApp number.

How do the 5 / 7 / 10-account plans work?

Pick a plan, then for each account enter its Google email and the WhatsApp number it will be used with, and pay once. Every account unlocks immediately. Each account is locked to one WhatsApp number, so choose the plan whose account count matches how many numbers you run.

Do the saved contacts really sync to my phone?

Yes. Because contacts are written into Google Contacts (not exported to a file), any phone signed in to that Google account — Android or iPhone — receives them through normal Google contact sync.

Will it create duplicate contacts?

No. Before saving, LeadSync checks the numbers already in your Google Contacts and skips any that match, so you only ever add what's genuinely new.

Does this work for WhatsApp group chats?

Yes. In version 1.3.0, open a group's member list in WhatsApp Web and choose Scan & Save. LeadSync scrolls the rendered member list and saves visible phone numbers that are not already in the connected Google Contacts account. It cannot recover numbers WhatsApp displays only as saved names or otherwise does not render.

What happens if WhatsApp changes its layout?

LeadSync depends on WhatsApp Web's page structure, which can change without notice. We patch these as fast as we can, but can't guarantee zero downtime.

Can I get a refund?

Yes — if LeadSync doesn't work as described, you can request a full refund within 3 days of payment. See our Refund Policy for details.

Turn WhatsApp chats into Google Contacts — free to start.

Install LeadSync, connect Google, and let your leads sync to your phone automatically.

35 contacts free · 3-day refund on paid plans

LeadSync

Save up to 35 contacts, 100% free.

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