Clean up your Google Contacts. Find out who's on WhatsApp.
Sampark Setu Contacts is a free Google Sheet that connects to your Google Contacts — fix duplicates and messy data, then verify which numbers are reachable on WhatsApp, all in bulk, all from a spreadsheet you already know how to use.
Free. No credit card. Works alongside your existing Sampark Setu account, or on its own.
What it does. In one sheet.
Four things Sampark Setu Contacts handles for you — without leaving your spreadsheet.
Clean up your contacts
Find duplicate contacts, missing company names, and inconsistent phone formats across your whole address book — review everything in one sheet before anything changes in Google Contacts.
Verify WhatsApp numbers, in bulk
Check hundreds of contacts against WhatsApp at once. Each number gets labeled directly on the contact — Business, Personal, or Not on WhatsApp — so you always know at a glance.
Connect your LinkedIn network
Upload your LinkedIn connections export and automatically match them against contacts that don't have a profile link yet.
Everything stays in your control
Your data lives in your own Google Sheet and your own Google Contacts — never copied to our servers, except for the phone numbers sent for WhatsApp verification.
Three steps. You stay in charge.
From sign-in to a cleaned-up address book — no app to learn.
- 01
Connect
Sign in with Google and grant access to your Contacts and one spreadsheet.
- 02
Review
The tool pulls your contacts into a working sheet where you can spot and fix issues.
- 03
Sync back
Approve changes and push them straight back to Google Contacts. Nothing changes without your say-so.
Same team. Separate, free tool.
Sampark Setu Contacts is built by the same team behind Sampark Setu. It's a separate, free tool — a companion Google Sheet, not a new app to learn — for the part of outreach that happens before you ever send a message: knowing who's actually reachable on WhatsApp, and keeping your contact list clean.
Free. No paid tier, no usage fees.
Clean up your Google Contacts. Find out who's on WhatsApp.
Free. No credit card. Works alongside your existing Sampark Setu account, or on its own.