I tried WhatsApp, Web version, that is very easy to use. Firstly, go to https://web.whatsapp.com/. Then open WhatsApp in my phone, click Menu->WhatsApp. Finally, Scanning QR code by using phone. Then it will works.
Now, I can send and receive messages in my computer. Using a bigger screen and a full-size keyboard, that is more comfortable to read and reply message. Also, you only need to drag and drop the files to the images into the message window, then the images will be sent out.
Only disadvantage is only working on Chrome