Know who's on WhatsApp before you message them.
Paste your list or upload a file. Sampark Setu checks every number through your own WhatsApp. Live results in minutes. Your list never leaves your account.
Right now, you're guessing.
You have a list. Customers, leads, contacts from your CRM. Some are on WhatsApp. Some aren't. You have no way to tell which.
So you send anyway. The dead numbers do nothing — they just eat your daily limit. A list full of dead numbers makes your account look careless.
The free checker websites? They want your customer list pasted into a strange website. Most owners take one look and close the tab. Rightly.
There is a calmer way to do this.
Paste a list. Watch the answers arrive.
No setup. No spreadsheet formulas. Numbers in, a clear answer out.
Paste or upload
Type numbers in, or upload CSV/Excel. Indian 10-digit, +91, 0-prefixed, international — we clean and de-duplicate for you.
Watch it run, live
Results stream in one number at a time. Verified, or not on WhatsApp. No black box, no 'come back later' email.
Download the clean list
Now you know exactly who you can reach — and which numbers to drop.
A list of 200 numbers finishes in around twenty minutes. When it's done, you have two clear groups: people you can message, and numbers worth dropping.
Your list stays in your hands.
This is the part the free websites get wrong. They pull your list onto their server. You never learn what happens next.
Sampark Setu checks each number through your own WhatsApp, inside a tool you control. You are not handing your contacts to a stranger.
Checked at a human pace.
Verifying is the safest WhatsApp action — you are only asking "is this number registered?" Even so, we check one number at a time, with a natural gap between each. Human-paced, never in a rush.
Read why we build everything this way →How many you can check a day.
WhatsApp watches new accounts more closely. Your daily limit starts modest and grows as your account settles in.
Hit the limit and the remaining numbers wait for the next day. Nothing breaks, nothing gets flagged. Most lists fit inside a single day.
Once you know who's reachable.
A verified list is the start. Here's what most people do next.
Enrich the business numbers
Pull business names, categories, websites and more from the numbers that are on WhatsApp.
See enrichment →Pull from your groups
Extract members from your WhatsApp groups, and verify them in the same step.
See group extraction →Common questions.
Stop guessing who's on WhatsApp.
Verify your list for free. Sign in with Google — no card.
Free on every plan · Your list stays in your account