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How to create a WhatsApp link and QR code for your business

A WhatsApp link is a short URL that opens a chat with you in one tap – no number to save, no contact form, no friction. Paste https://wa.me/ plus your phone number, and anyone who clicks it lands directly in a WhatsApp conversation with your business.

That one tap matters more than it looks. Every step between “customer wants to talk” and “customer is talking” sheds people – and a link (or its printable twin, the QR code) removes all of them. It’s the cheapest conversion-rate improvement in messaging.

In this guide, we’ll break down the WhatsApp link format, how to add a pre-filled message, how to turn any link into a QR code, and where to place them so they actually get used – with a free generator that builds the link in seconds.

A WhatsApp link (also called a click-to-chat link) is WhatsApp’s official URL scheme for starting conversations. The official format is:

                                

                                    https://wa.me/15551234567

…where the number is your full phone number in international format – country code included, with no zeroes, brackets, dashes, or plus sign. Clicking it opens a chat with that number in the WhatsApp app (or WhatsApp Web on desktop), even if the person has never saved your contact.

Because it’s just a URL, it works anywhere a URL works: your website, email signature, Instagram bio, ad campaigns, invoices, even packaging – via QR code.

1. Use the free generator (fastest)

Sinch’s free WhatsApp link generator builds the link for you: enter your number, type an optional pre-filled message, and copy the result. No signup – done in under a minute. For the QR code, see the next section.

2. Build it by hand

Take https://wa.me/, append your number in international format, and you have a working link. For a U.S. number (555) 123-4567, that’s https://wa.me/15551234567.

3. Add a pre-filled message

The link can carry an opening message so the customer doesn’t start from a blank box:

                                

                                    https://wa.me/15551234567?text=Hi!%20I%27m%20interested%20in%20a%20quote

The ?text= parameter takes URL-encoded text (%20 for spaces, and so on – a generator handles the encoding for you). Pre-filled text is the underrated half of the feature: it tells you which surface the chat came from (“Hi! I’m messaging from the pricing page…”) and gets the customer past the hardest part of any conversation – starting it.

How to create a WhatsApp QR code

A WhatsApp QR code is simply your wa.me link, encoded – scanning it opens the same chat. Two ways to make one:

  • Any free QR code generator: paste the wa.me link you just built, and the code it produces opens the same chat.
  • WhatsApp’s built-in QR: in the WhatsApp Business app, go to Settings → Tools → QR code to get an official code for your number (and scan others’ codes from the same screen).

Print quality matters more than source: keep contrast high, don’t shrink it below about 2 × 2 cm, and always test-scan the final printed version.

A link only converts where customers actually look. The placements that work:

  • Website: a persistent chat button or a click-to-chat widget on contact and pricing pages – the highest-intent surfaces you own.
  • Social bios and posts: Instagram and Facebook bios are prime real estate; the link turns profile visitors into conversations.
  • Email: signatures and support emails (“prefer to chat? Message us on WhatsApp”).
  • Ads: click-to-WhatsApp ads on Meta platforms open a chat directly – and in the U.S., where marketing templates are currently paused, customer-initiated chats like these are exactly the WhatsApp motion that still works.
  • Print and packaging: QR codes on receipts, flyers, table tents, product boxes, and storefront windows – each scan is a pull-marketing entry point, the same mechanic behind successful messaging campaigns.

Pro tip: Give each placement its own pre-filled message (“Hi! Scanning from the store window…”). It’s free source attribution – you’ll know exactly which surfaces drive conversations without any tracking infrastructure.

A few placements that consistently over-perform, by business type:

  • Restaurants and salons: a QR code at the register and on receipts – “message us to book your next visit.”
  • E-commerce: the link on order-confirmation pages and package inserts, opening a support chat that’s already scoped to the order.
  • Field services: the link in quote emails, so the follow-up question lands as a chat instead of a phone-tag loop.
  • Real estate: one link per listing with the address pre-filled – instant attribution, zero forms.

The result? The businesses that win with links treat every printed surface and pixel they own as a potential conversation starter – and let the pre-filled text do the routing.

What happens after they click?

The link starts the conversation; what converts it is being ready to answer. Route incoming chats somewhere real:

  • A small team can run everything in the free WhatsApp Business app – the link works identically.
  • Growing teams pair links with a shared inbox and a chatbot for instant first response, via a platform like Sinch Engage.
  • And every inbound chat opens a 24-hour service window where you can reply free-form, no template needed – which is what makes inbound-first strategies such a cost-efficient way to run WhatsApp for business. (One date to know: from October 1, 2026, Meta begins charging for outbound messages sent during that window.)
  • A national-format number. wa.me/05551234567 fails outside your country – always international format, no leading zero.
  • Unencoded pre-fill text. Raw spaces and apostrophes break the URL on some platforms; let a generator encode it.
  • A QR code nobody tested. Print, scan with both iPhone and Android, then ship.
  • A link with no receiver. If replies take a day, the link trained customers not to use it. Staff the channel before you promote it.

The whole play takes five minutes: generate the link, add a pre-filled message per placement, print the QR where your customers already stand, and make sure someone (or something) answers fast.

Ready to make yours? Use the free WhatsApp link generator. Or, if the chats are already flowing and you need a team inbox behind them, check out Sinch Engage – we’re excited to help!

Frequently asked questions

Yes – wa.me is WhatsApp’s official short-link domain for click-to-chat. Links using api.whatsapp.com/send?phone= are the older equivalent and still work; wa.me is shorter and preferred.

Yes – that’s the point. The link opens a chat with your number directly, no saved contact needed. It also works in reverse as a strategy: because every link-started chat is customer-initiated, it opens the 24-hour service window – no template required. (From October 1, 2026, Meta charges for outbound messages sent during that window.) (Note this is the opposite of app broadcast lists, which require the customer to have saved you.)

Yes – group admins can generate an invite link from the group’s settings (Group info → Invite via link). It uses a different format (chat.whatsapp.com/…) and can be reset anytime if it leaks.

No – a wa.me link works as long as the phone number is registered on WhatsApp. If you change numbers, regenerate the link and re-print any QR codes.

Completely. The link generator is free with no signup, WhatsApp’s built-in QR feature is free in the app, and free QR generators turn any wa.me link into a code. The only costs worth planning for come later, and they’re good problems: answering the conversations the codes create.

Photo of Drew Wilkinson

Drew Wilkinson Drew Wilkinson is a Marketing Operations Manager at Sinch. Prior to Sinch, Drew also led marketing at SimpleTexting, a texting platform for small businesses.

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