Contactless is a messaging extension for Chrome developed by egz01. This free extension falls under the Browsers category and specifically the Add-ons & Tools subcategory. With Contactless, users can start chatting with any number they come across on the web, without the need to add it to their contacts.

One of the standout features of Contactless is its right-click-menu option, "Message on Whatsapp". This option allows users to quickly initiate a conversation with any number they find while browsing the web. The extension offers a simple configuration tool that allows users to choose between using the web version or the app version of Whatsapp on their desktop.

Contactless also includes a convenient feature for streamlining conversations. Users can define a prepared message that will appear at the beginning of every chat, eliminating the need for repetitive copy-pasting of common questions or greetings.

With Contactless, Chrome users can easily connect with others on Whatsapp without the hassle of adding contacts or manually typing out messages. It provides a seamless experience for initiating conversations and streamlining communication on the popular messaging platform.