Cal.com is the open source Calendly alternative that lets you easily book appointments and schedule meetings, without the email tennis. Features Add Cal.com booking calendar to any WordPress page/post with a simple shortcode. Display your Cal.com booking calendar inline or in a popup. Customize your booking button to suit you. Shortcode [cal url=/username/meetingid] Shortcode Customization [cal url=/username/meetingid type=2 text="Schedule a call with me"] url: URL of the booking calendar type: Add inline or popup embed. Inline embed: 1, Popup embed: 2 text: For popup embed, customize the text/button that triggers the popup. CSS Customization To customize the popup text/button, style the #calcom-embed-link element with CSS. Example: #calcom-embed-link { background-color: #222222; padding: 15px; color: #fff; font-size: 16px; text-align: center; cursor: pointer; } Use of 3rd Party Software This plugin relies on Cal.com embed. See their Privacy Policy and Terms of use.