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Generate QR code WhatsApp for a live chat

Allow guests to start a WhatsApp chat with you without saving the phone number first.

  • Open the correct a live chat
  • Link wa.me with international phone number
  • Can use static or dynamic code

Learn more

Helps scanners open the correct WhatsApp without searching

Some international WhatsApp numbers are long, difficult to remember, and easy to enter the wrong country code. The wa.me link in the QR code opens the correct conversation, can pre-fill the opening sentence and does not force the customer to save the number to their contacts first.

Open the correct content

Scanners are taken directly to a live chat, without having to enter an account name or search among many similar results.

Connect publications to WhatsApp

Bring sales, scheduling, and support questions into familiar messaging channels for customers.

Can be changed as needed

Use static code if the link is stable. Choose dynamic coding if you want to change content after printing or need to track scans.

Inside the QR code

Which WhatsApp link should I use?

WhatsApp link uses wa.me with international phone number. You can add an opening message for guests to edit before sending. The spaces, Vietnamese accents and emojis in this sentence must be encoded in the URL, so the actual link is much longer than the visible text.

Use public and official links

The number after wa.me only includes numbers. Remove plus signs, spaces, brackets, dashes, and leading zeros of local formatting.

Scanning is faster and has fewer errors than typing by hand

The WhatsApp link can contain the account name, periods, underscores, numbers, or a post identifier string. On a phone, looking at a long URL on paper and then typing it again is slow and error-prone; The QR code takes the user to the exact a live chat selected after just one scan.

Check when the application is and is not installed

Phones with WhatsApp will open the app; The browser may open WhatsApp Web or ask to log in or install the application. The receiving number must be using WhatsApp.

Choose the link appropriate to the time of use

Only print long term when the business still manages and tracks that number. Use dynamic code if sales or support numbers are subject to change.

Select static or dynamic code before printing

The static code directly opens the WhatsApp link but cannot be changed after printing. Dynamic code uses a shorter redirect link, often creating cleaner code and allowing for changing destinations, but requires the Internet and depends on a redirect service.

Example link WhatsApp

International number: 84901234567 · Message: I want advice — https://wa.me/84901234567?text=Toi%20muon%20duoc%20tu%20van — WhatsApp opens the chat with the correct number and puts the opening sentence in the compose box but doesn't send it yet.

Check before publishing

  • Remove the plus sign, space and leading zero in the phone number after wa.me.
  • Try using a phone that hasn't saved the business number in your contacts.
  • Keep the opening message short and check the Vietnamese accent after opening WhatsApp.
  • If the URL copied from the Share button is too long, look for a shorter profile, channel, or official content link; Only remove the parameter after trying to open the clean link.
  • If the code scans but opens incorrectly or reports an error, check again in an incognito window to detect private, deleted, expired, or renamed content.

7 notes when creating QR code WhatsApp

The wa.me link is quite compact, but pre-filled messages can make the code thicker. Put your business name and the call to “Chat with us” next to the code.

Keep the link concise and correct

Just fill out a short sentence like "I need product advice...". Long content, Vietnamese accents and emojis are encoded into many characters in the URL, making the code thick quickly even though the sentence does not look too long.

Use brand colors but make them easy to scan

WhatsApp blue can be used if the color is dark enough on a white background. Avoid light green codes on blue backgrounds or transparent overlays.

The logo is small and does not cover the identification part

The WhatsApp icon should be small, centered and not cover the three large squares in the corner. Scan again after adding logo.

Choose size according to code location

Leave white space around the code and avoid curved, shiny or easily scratched surfaces. Codes on windows and vehicles need to be larger than codes on product labels.

Check the entire process after scanning

Try on iPhone and Android, with and without WhatsApp installed. Check the receipt number, business name and opening content before printing.

Add specific calls next to the code

Specify what the user will do, for example “Follow on WhatsApp”, “Watch videos” or “Message”. The WhatsApp symbol alone is not enough for them to know what content the code opens.

Periodic check scan after release

Account name, privacy, and post status may change. For packaging, signs or documents that are used for a long time, check the code on a schedule and use dynamic code if you need to replace the link without reprinting.

Features

Features

Brand-ready design

Adjust colors, module shapes, finder eyes, frames and logos while previewing every change.

Print-quality exports

Download high-resolution PNG, scalable SVG or EPS for screens, labels and large-format print.

Flexible sizing

Choose the output size that matches a business card, table sign, poster or digital placement.

Reliable scanning

High error correction and a clear quiet zone help the code scan across modern mobile devices.

Live preview

See the QR pattern and visual styling before generating the final downloadable file.

Static or dynamic choice

Use direct static content or select a dynamic workflow when you need editing and analytics.

Implementation steps

How does the WhatsApp QR code work?

Some international WhatsApp numbers are long, difficult to remember, and easy to enter the wrong country code. The wa.me link in the QR code opens the correct conversation, can pre-fill the opening sentence and does not force the customer to save the number to their contacts first.

Copy the link WhatsApp

Open the correct a live chat, copy the public link and check that people who are not logged in can still access it.

Paste the link and customize the code

Select WhatsApp, paste the full link, then change the color or add a logo if necessary.

Generate code and test scan

Check whether or not the WhatsApp app is installed on your phone before printing or posting.

Use cases

Use cases

Sales consulting

Place a code on the product so customers can quickly ask about price, product status or delivery.

Schedule and support

Open a conversation from an appointment card, invoice, or service instruction sheet.

Events and print campaigns

Place the code on posters, booths or flyers for attendees to quickly open a live chat.

Packaging and point of sale

Add a clear WhatsApp action on products, invoices or counter tables.

Frequently asked questions

Which WhatsApp link should I use?

Use https://wa.me/ followed by the country code and phone number, without plus signs, spaces or dashes.

Does scanning the code automatically open the WhatsApp application?

If your phone has the app installed, the link will usually open in the app. If not installed, users can be switched to the web version.

Can the WhatsApp link be changed after printing?

Static code cannot change its content. Use dynamic code if the account, post, or campaign may change.

Does the content of WhatsApp need to be public?

Yes. Try it without being logged in to make sure the scanner doesn't get a privacy, expired, or no access message.

Helps people open WhatsApp in just one scan

Create a WhatsApp QR code for a live chat and check it carefully before printing.

Generate QR code WhatsApp