Webinar software is an online platform designed to host, manage, and deliver live or pre-recorded virtual events, seminars, or presentations. These platforms enable users to interact with their audience through video, audio, and text-based communication tools. Features typically include screen sharing, recording capabilities, attendee engagement options, and analytics for measuring event success. Popular webinar software options include Zoom, GoToWebinar, and Google Meet, each offering different pricing plans and functionalities to cater to various needs and user preferences.