This project provides a simple way to open a WhatsApp chat window with a a number that is not part of your contacts. It consists of an HTML form with a phone number input field and a JavaScript snippet that listens for form submissions and generates the appropriate WhatsApp URL to open the chat window.
You can use it right away. Go to https://bbrassart.github.io/whatsapp.
You can also download or clone the repository and open the index.html file in a web browser. You can then enter a phone number in the input field and click the "Chat on WhatsApp" button to open a chat window with that number on WhatsApp Web or the WhatsApp app on your mobile device.
This project is licensed under the MIT License. See the LICENSE file for more information.