What is a webinar?
A webinar is a presentation delivered over the internet to an audience that registered for it in advance. Here is what that means in practice: how a webinar differs from a meeting, a livestream and a webcast, the formats you can run, and what actually happens from the moment someone signs up.
The plain definition
The word is a contraction of web and seminar, and the contraction is honest: a webinar is a seminar held on the web. One person, or a small panel, presents to a room of people who signed up beforehand, at a time announced in advance, usually with slides or a screen share carrying the visual load.
What actually defines the format is the direction of traffic. The presenter broadcasts; the audience answers back through a narrow, deliberately controlled channel — a chat box, a question queue, a poll, a raised hand. Attendees are muted and camera-off unless the host promotes one of them. That is not a missing feature, it is the whole design. Two hundred people cannot hold a conversation; two hundred people can listen to one and type.
Three things separate a webinar from a video sitting on a page: registration, a start time, and a room. Someone who watches a video on your website is still anonymous when it finishes. A webinar asks for a name and an email address before it hands over the link, turning that visitor into a contact you can remind, segment and send a replay to. The start time gives them a reason to show up now, and the room — chat, polls, a host answering you by name — is what makes watching feel like attending.
Webinar definition, webinar meaning: the one-line versions
- Definition. A webinar is a scheduled online presentation delivered to a registered audience, in which the host broadcasts audio, video and slides while attendees take part through chat, polls and Q&A rather than speech.
- Meaning. Web + seminar. The word dates from the late 1990s, when the thing it described was a slide deck narrated over a phone line.
- Also called. Web seminar, online seminar, virtual event. Webcast and livestream are near neighbours, not synonyms — the next section pulls them apart.
Webinar vs meeting vs livestream vs webcast
These four words get used interchangeably and they should not be. The differences come down to three questions: who is allowed to speak, how people get in, and how big the room is before the format breaks.
| Attribute | Webinar | Online meeting | Livestream | Webcast |
|---|---|---|---|---|
| Who can speak | Host plus invited panelists | Everyone in the room | The broadcaster only | The broadcaster and scripted speakers |
| Attendee camera + mic | Off by default; host can promote someone | On by default | Not available | Not available |
| How people get in | Register first, link arrives by email | A link, often a calendar invite | A public URL, no sign-up | A branded page, registration optional |
| Practical audience size | Tens to a few thousand | 2 to about 50 before it stops working | Unlimited | Hundreds to tens of thousands |
| How the audience takes part | Chat, Q&A queue, polls, raised hands | Talking, screen sharing, whiteboards | Public chat and reactions | Little to none; sometimes a question form |
| Typical length | 30 to 60 minutes | 15 to 60 minutes | Open-ended | 30 to 90 minutes |
| Recording and replay | Standard, usually emailed afterwards | Recorded sometimes, shared rarely | Archived on the platform | Standard, often hosted permanently |
| What it is usually for | Teaching, selling, training, onboarding | Working together on something | Reaching a public audience | Earnings calls, all-hands, briefings |
The edges are blurry, and the useful test is the door, not the software. If people had to give you an email address to get in, you are running a webinar — whatever the tool on the invitation says. If anyone holding the URL can watch, you are running a livestream or a webcast. Most platforms will do all four; the format is decided by how you configure it, not by the logo on the player.
Webcast survives mainly in enterprise and finance: an earnings call, a regulatory briefing, a five-thousand-person all-hands. It means a larger, more one-directional broadcast with higher production values and little back-and-forth. A livestream is public and platform-native — YouTube, Twitch, LinkedIn — where the audience is whoever happens to be there and you keep no record of who watched. That last difference is the one that matters commercially: a livestream gives you reach, a webinar gives you a list.
The four webinar formats
Everything on the market is a variation of four arrangements. They differ in one thing only: how much of the hour is happening right now.
1. Live
You present in real time, from a camera and a screen share, while people watch. You can read the chat, change the order, answer the awkward question, and let the urgency be real, because it is. The costs are equally real: you present it again every single time, at an hour that suits part of your audience and nobody else, and if your connection drops the event drops with it. Right for a launch, a panel, anything newsworthy, and anything where the audience needs to believe a human is there.
2. Automated, sometimes called simulated live
You record once and schedule the recording to play at set times — Tuesday at 14:00, Thursday at 19:00. Attendees register, get reminders, arrive in a real room with chat and offers, and watch a synchronised video where everyone sits at the same second. The demonstration never fails and the timing is identical every week, which is why it suits a pitch that has been tested. One rule: describe it accurately. An automated webinar is a legitimate format; an automated webinar sold as live is a lie the chat will eventually catch.
3. Evergreen, also called just-in-time or on-demand
No fixed dates at all. The registration page offers the next session a few minutes from now, so somebody landing at 03:40 on a Sunday is watching by 03:55. That gap is the whole game: a fifteen-minute wait converts far better than a three-day one, because you catch the person while the intent that made them click is still warm. The trade-off is attendance quality — on-demand audiences turn up in the smallest proportions and leave earliest, because nothing was ever committed to.
4. Hybrid
A recorded presentation with a live human in the room. The video plays to schedule while the host answers chat as it arrives and takes genuine questions at the end. You get the reliability of a recording — no fluffed demos, no dead air, no forgotten slide — with the responsiveness that makes people stay. For anyone running the same session weekly, this is the version that survives contact with reality.
Who runs webinars, and what for
Selling something that needs explaining. A $2,000 course or a $500-a-month platform rarely sells from a landing page, because the buyer has questions the page cannot anticipate. A 60-minute webinar is one of the very few formats where you can teach for half an hour and make an offer for ten minutes without the audience feeling ambushed: they came to learn about the problem, and you sell the solution.
Training customers and onboarding new ones. A recurring "getting started" session every Wednesday answers the same twelve questions for forty people at once instead of forty times in a support inbox. The recording becomes the help article nobody had time to write, and the attendance list shows which new accounts are engaging with what they just bought.
Education and professional development. Universities, associations and certification bodies deliver continuing-education content this way. Attendance tracking matters more here than anywhere else: credits usually require proof a person was present for a minimum duration, which is why platforms record watch time per attendee rather than a headcount.
Internal communication. All-hands meetings, reseller updates, compliance briefings. At this size the format slides towards webcast: one-directional, with a moderated question queue.
What actually happens in a webinar
A real 60-minute webinar end to end. Most of the work happens outside the hour, which is the part first-time hosts underestimate.
| When | What happens |
|---|---|
| Two weeks before | The registration page goes live: title, the start time in the visitor's own zone, who is presenting, and a form. Name and email is the minimum. Every extra field costs you registrations, so ask only for what you will use. |
| The moment someone registers | A confirmation email with the join link and a calendar file. If it does not land within a minute, a meaningful share of that person's attention is already gone. |
| 24 hours, 1 hour, 5 minutes before | Reminder emails. This cadence is the single biggest lever on how many people actually turn up, and it costs nothing. |
| Minute 0 to 3 | The room opens early. Latecomers file in, the host says who they are and what the next 55 minutes contain, and chat warms up on a question anyone can answer. |
| Minute 3 to 35 | The content. Slides or a screen share, one idea per slide, and a poll somewhere in the middle to pull attention back before it drifts. |
| Minute 35 to 45 | The demonstration, the offer, or the next step, depending on why you ran this. A handout or link drops into chat here, usually with a countdown on it. |
| Minute 45 to 60 | Live Q&A from the question queue. This is the part people remember and the part that is impossible to fake, which is why even pre-recorded webinars keep a human here. |
| Within a few hours after | The replay email, split two ways: attendees get a thank-you and the recording, no-shows get a shorter note and the recording. Two different audiences, two different emails. |
How long is a webinar, and how many people turn up?
Most webinars are scheduled for 45 or 60 minutes, and most of them should be. An hour divides cleanly into roughly 35 minutes of content, 10 for the demonstration or the offer and 15 of questions, and it is a unit people can find in a calendar without negotiating with themselves. Thirty minutes works for a briefing to an audience that already knows you. Ninety minutes is training rather than a webinar, and needs a scheduled break or you will watch the room empty at minute 55.
Attendance is where expectations break. Registrations are not attendees, and the gap is large enough to change how you plan. The calculator on this site models it with a baseline of 40% for live, 30% for automated and 20% for on-demand, then adjusts for where the registrations came from and how many reminders you sent.
Worked through: 400 registrations for a live webinar promoted to your own email list, with the full 24-hour, 1-hour and 5-minute sequence. That is the 40% live baseline, multiplied by 1.05 for your own list and 1.10 for the full cadence — about 46%, or roughly 185 people in the room at the start. By the time you make the offer, expect around 110 of them, because attention decays across the hour whatever you do. Send no reminders and the same 400 registrations put about 109 people in the room: three emails you did not write cost you 40% of your live audience. Cold traffic from ads attends less reliably than your own list, and affiliate traffic sits between the two.
None of which makes the no-shows worthless. Someone who never attended still gave you a name, an email address and a proven interest in the subject, and the replay email is frequently the one they open. Plan for the replay as a real audience, not a consolation prize. Run your own numbers in the attendance calculator if you want the arithmetic for your list rather than a generic one.
What you need to run one
A video call tool gets you a room and stops there. A working webinar needs five pieces: something to broadcast live or play a recording on a schedule, a registration page with a form, an email sequence that confirms and reminds, a room with chat and polls and somewhere to put the offer, and a replay. Assemble those from separate products and you are maintaining four integrations and paying four bills. That gap is what webinar platforms exist to close.
Webinly is one of them, and since you are reading this on our site, here is the honest version. It runs all three scheduled formats in one product — live, automated and evergreen — with the same registration pages, emails, chat and offers behind each. Pages come from 43 drag-and-drop blocks or a template, forms from a 29-field builder with branching, and the confirmation, the 1-day, 1-hour and 5-minute reminders and the attended-versus-no-show replay emails send for you in English or Arabic. Every registrant becomes a contact record with live engagement, buyer-intent and qualification scores. Email is the only channel that sends — no SMS, no push — and we would rather say so here than have you find out in week two.
Plans are $39, $159 and $349 a month, or about two months free on annual billing, capping registrations per webinar at 120, 300 and 1,000. The limit worth knowing first: Starter cannot broadcast live — it runs automated and evergreen webinars only, and live broadcasting, recording, co-hosts and captions start on Pro. There is no card-free trial either. You pick a plan and save a card, and on a first plan the first charge lands 14 days later, with one webinar and 50 registrations in between, so you see it work before you pay for it.
Common questions about webinars
What is the difference between a webinar and a meeting?
Direction and control. In a meeting everyone can speak and share a screen, and the point is to work on something together. In a webinar one person presents and the audience responds through chat, polls and a Q&A queue. A meeting stops being useful somewhere around 20 to 50 people; a webinar is designed to work at 500.
Do attendees need a camera or a microphone to join a webinar?
No. Attendees are muted and camera-off by default and take part by typing. Most join with headphones and nothing else. A host can promote someone to speak if the platform allows it, but that is the exception, not how the format normally runs.
Is a pre-recorded webinar still a webinar?
Yes, as long as you do not pretend it is live. An automated webinar plays a recording on a schedule inside a real room with real chat, real polls and a host answering questions. Attendees still register, still get reminders, still see the offer at the same point. What you must never do is claim to be broadcasting live when you are not.
How long should a webinar be?
Most land between 45 and 60 minutes: roughly 35 minutes of content, 10 for the demonstration or the offer, and 15 of Q&A. Use 30 minutes for a briefing to an audience that already knows you, and 90 only for hands-on training where people expect to work along and get a break.
How many registrants actually attend a webinar?
Fewer than you expect, and the number depends on the format and the list. Webinly's own attendance calculator uses a 40 percent baseline for a live webinar, 30 percent for an automated one and 20 percent for on-demand, then adjusts for where the registrations came from and how many reminders you send. Dropping the reminder emails alone costs about a third of your live audience against a 24-hour plus 1-hour cadence, which is why the reminder sequence is not optional.
Do you have to pay to attend a webinar?
Usually not. The overwhelming majority are free, because the host is trading the content for your email address and your attention. Paid webinars exist mostly in professional training and certification, where the session carries continuing-education credit or a workbook.
What software do you need to run a webinar?
More than a video call tool. You need somewhere to broadcast or play the video, a registration page with a form, an email sequence that confirms and reminds, a room with chat and polls, and a replay. Conferencing tools give you the room and nothing else, which is why webinar platforms bundle the pages, emails and contact record with the broadcast.
Keep going
Last updated 2026-09-11. Attendance percentages are the model behind the Webinly attendance calculator, not a measurement of your list. Something wrong? Email us.