To install the Freshchat messenger/widget on your website, 

1. Login to your Freshchat account as an Admin.

2. Go to Settings.

3. Select Web Messenger.

4. In the Getting Started tab, you can find your embed code for the Freshchat widget.

5. Copy and paste this code before the /body tag on all the pages of your website where you want the Freshchat messenger to appear.

The Freshchat messenger will now be available on your website and your visitors and customers can start interacting with you.