Webcast vs Webinar: What’s the Difference?
A webcast is typically a one-to-many presentation conducted over the internet. It's much like a traditional TV broadcast, but shown live via an internet stream. The recording is then stored on a web page for future viewing. A webinar is typically smaller and more collaborative – like an interactive seminar conducted over the internet. A webinar may contain audience polls, Q&A chat functions, and whiteboards.
What is a Webinar?
Webinars are designed for smaller groups, from meeting-sized groups to online events involving hundreds of people. They often include many of the options available with online meetings, such as Q&A, polls, whiteboard and markup abilities. So webinars are full-featured presentations or events for a few hundred or (often) far fewer individuals.
What is a Webcast?
Webcasts are primarily with video and slides or video-only and are based on a video-to-user model. In other words, they’re more like a television show (possibly live) than a meeting. Large webcasts can handle thousands or even tens of thousands of viewers. So webcasts are audiovisual experiences aimed at larger audiences, with the trade-off being fewer options for the end users.
This is obviously is a high-level description of the differences and there are many more nuances we could get into. I’m curious to hear what others have to say or add to this conversation.