How to launch WhatsApp in Flutter web or launch WhatsApp from browser in Flutter or suggest any package from pub.dev?
You can give an anchor with href to https://api.whatsapp.com/send/?phone=(phone_number)
For full code
<a href="https://api.whatsapp.com/send/?phone=6281144441111&text=Hello">Send Hi to me</a>
Note:
Make sure you give your country code without (+).
for example 6281144441111