You can send message to any phone number without saving it in your contact list first. This tool is very useful if you have a long list of phone numbers to whom you need to send messages to.
You will need to have logged in to https://web.whatsapp.com in order to use this. You only need to log in once using your qr scan code. A new tab will open each time you want to send new message, you can close that tab once you have pressed send.
Send message to a whatsapp number without saving in contacts first
How to add new numbers
Enter one or more phone numbers including country codes. If you want to add names then use comma to separate number and name. You can also categorize your numbers by adding another comma after name.
Only number is required.