I need a webinar platform that allows for live streaming and does not cap the number of attendees.

Most traditional dedicated webinar software (such as GoTo Webinar or WebinarJam ) hard-caps your active room size based on your subscription tier (ranging from 500 to 5,000 attendees).

However, virtual event platforms and enterprise tools support true unlimited or massive scale (10,000+ attendees) , often by combining a core interactive room with scalable live streaming infrastructure (like RTMP or HLS streaming to overflow audiences).

Top Platforms Supporting Unlimited or Massive-Scale Attendees

Key Considerations for Unlimited Attendance

• Interactive vs. Broadcast Mode: Platforms handle massive numbers by dividing users into "active participants" (who can use Q&A, chat, and polls) and "viewers" (who watch via a scaled video stream). Ensure the platform supports the interaction level you need for tens of thousands of people.
• Pricing Structure: Platforms that don't cap attendees usually require custom enterprise sales quotes rather than self-serve monthly tiers, as bandwidth costs scale significantly past 1,000 concurrent users.

If you want to narrow this down, let me know:

• How many attendees do you realistically expect (e.g., 2,000 vs 20,000)?
• Do you need native registration pages and CRM integration , or just a broadcast link?

If “no cap on attendees” is a hard requirement, you’ll want to separate true unlimited-audience platforms from tools that merely offer high attendee tiers. Here are some options to consider:

My shortlist based on your requirement

• Best “true webinar platform” fit: Webinar.net — it explicitly markets unlimited attendees and includes webinar-specific features like branding, analytics, and engagement tools.
• Best for very large broadcasts with minimal friction: Webinar.gg — designed around large audiences without attendee-based pricing.
• Best established enterprise option: GoTo Webinar — strong webinar workflow, analytics, Q&A, and live-streaming options.
• Best if you only need maximum reach: YouTube Live — but you lose many webinar-native features such as controlled registration, lead capture, and attendee management.

A few questions would help narrow it down:

1. What audience size are you expecting (1,000, 10,000, 100,000+)?
2. Do you need private registration/login, or can anyone with a link watch?
3. Do you need Q&A, polls, chat moderation, recordings, or CRM integrations?

Yes. The key distinction is “unlimited attendees” inside the webinar platform versus unlimited viewers via a live stream. A few platforms currently fit what you’re describing:

My recommendation

If you mean “I want 10,000, 50,000, or potentially 100,000+ people to watch live, without buying a higher attendee tier,” I'd look first at Webinar.net. It explicitly advertises unlimited attendees and live webinars.

If you want a more established enterprise solution, GoTo Webinar is particularly interesting: its Complete plan supports up to 3,000 participants inside the webinar while allowing you to stream live to unlimited attendees.

Zoom can scale much further, but it's not literally uncapped—the current documentation says licenses can support up to 1 million view-only attendees. It also supports livestreaming to YouTube, Facebook, Twitch, or a custom streaming service.

If you tell me roughly how many people you expect (e.g. 1,000 / 10,000 / 100,000+), whether attendees need two-way interaction or just viewing, and your budget, I can narrow this down to the best 2–3 options.

If you need a webinar or virtual event experience that completely removes hard caps on live attendees, most traditional webinar tools won't fit your needs out of the box because they tier pricing by audience size (e.g., capping at 500, 1,000, or 5,000 participants).

To achieve a true unlimited or massively scalable attendee capacity while keeping live-streaming capabilities, you generally have to look at enterprise-tier plans or combine a dedicated webinar broadcast engine with an external streaming distribution network.

Top platform options capable of handling massive or unlimited live audiences include:

• Zoom Webinars : While standard packages range from 500 to 10,000 attendees, Zoom allows enterprise and custom event packages to scale up to 100,000 interactive attendees —and specialized single-use enterprise licenses can stretch all the way up to 1 million viewers with dedicated backend support.
• Cisco Webex Webinars : Webex is built for massive enterprise town halls, accommodating up to 100,000 total participants in its high-capacity tiers while retaining polling, Q&A, and moderation controls.
• Dedicated Streaming via RTMP (YouTube Live / Vimeo / Dacast) : If you truly want zero artificial caps, you can use a professional webinar tool or production encoder (like EasyWebinar or OBS paired with Vimeo or Dacast ) to simulcast/live-stream your webinar to a custom RTMP destination (such as YouTube Live). YouTube Live and similar dedicated video platforms feature effectively unlimited audience capacities for view-only or chat-enabled broad distribution.

To help narrow down the best fit, could you tell me:

• Roughly how many live attendees you are expecting?
• Do your attendees need two-way interactive features (raising hands, speaking on camera, live polls), or is a broadcast/view-only experience acceptable?

To achieve truly unlimited attendee capacity while live streaming, your best approach is to use a live production studio that broadcasts to open social destinations or a dedicated virtual event platform designed for uncapped scale . Traditional webinar tools like Zoom Webinars and GoTo Webinar enforce strict tier-based participant caps (e.g., 500, 1,000, or 10,000).

The top platforms that support live streaming without capping your viewer counts include:

1. Production Studios with Social Multistreaming

These platforms give you a browser-based broadcast studio, allowing you to stream simultaneously to platforms that have no inherent audience limits (like YouTube Live, Facebook Live, LinkedIn Live, or Twitch).

• StreamYard : Exceptional for its ease of use. You can invite on-screen guests via a link, manage layouts, and display live chat comments from all social destinations directly on the screen.
• Riverside : Focuses on high-resolution streams with built-in audience engagement tools like live chat, polls, and Q&A. It features a unique "live call-in" capability, letting viewers temporarily join the stream from the audience.
• ClickMeeting : Supports standard webinar rooms but includes built-in multistreaming features to push your live broadcast to YouTube or Facebook to bypass standard room capacity limits.

2. Enterprise Virtual Event Platforms

If you require a closed, professional event ecosystem rather than a public social media stream, you must look to enterprise-grade virtual event software.

• Hopin : Designed specifically for large-scale and massive virtual conferences, offering unlimited attendee capacity for events. It provides backstage areas, networking hubs, and expo booths alongside the main live stream.
• Popup : Notable as a newer platform offering a free tier model that allows for unlimited attendees without standard session time limits.

Summary Comparison

To help narrow down the right tool, could you tell me where you want your audience to watch (e.g., on YouTube/socials vs. a private web page)? Let me know if you also need registration tracking or paid ticketing features.

Yes. If by “does not cap attendees” you mean no fixed concurrent-attendee ceiling, there are a few good options—but they differ substantially in webinar features.

Webinar.gg webinar.net Crowdcast BigMarker GoTo### My top picks

• Webinar.gg — probably the closest match to your requirement. It explicitly says there is no attendee cap, including audiences of 500,000, with flat pricing and browser-based attendance.
• Crowdcast — excellent if you want something easy to operate with registration pages, chat, Q&A, and unlimited live attendees.
• BigMarker — stronger choice for a business/enterprise event where you might need to scale toward hundreds of thousands or up to 1M viewers.
• GoTo Webinar — interesting if you're okay with the interactive webinar itself having a limit but want to stream the event to unlimited viewers.

Important distinction: “Unlimited registrations” is not the same as unlimited people watching simultaneously. For your requirement, I'd specifically look for either unlimited concurrent attendees or unlimited live-stream viewers.

If you tell me roughly how many attendees you expect (e.g. 500, 5,000, 50,000, 500,000) and whether you need registration, Q&A/chat, email reminders, recording, and/or paid tickets, I can narrow this to the best 2–3 options and compare pricing.

When you need to host a live stream with unlimited (or effectively uncapped) attendees , traditional fixed-capacity webinar tiers (which usually stop at 100, 500, or 1,000 participants) won't work. Instead, you need tools built on broadcast architecture or specialized enterprise solutions.

Top platforms that support live streaming and do not cap your audience size include:

• YouTube Live : The ultimate option for truly unlimited, free, view-only audience scaling. While it lacks native multi-speaker interactive video room features for all attendees, you can use an encoder (like OBS Studio) or broadcast a platform like Zoom/Google Meet directly to YouTube Live.
• Vimeo : Higher-tier enterprise and advanced streaming plans support unlimited or massive custom viewer limits with high-definition adaptive streaming, built-in registration, and robust audience interaction tools like live chat and Q&A. You can check out their professional offerings on Vimeo.
• Dacast : A dedicated video hosting and live streaming platform that explicitly avoids imposing viewer or bandwidth limits on your streams, making it a favorite for large-scale digital events and built-in paywall monetization. More details are available on Dacast.
• Webinar.net : A cloud-hosted presentation and webinar platform designed to scale globally without strict capacity caps, allowing organizations to run broad presentations and live streams without traditional tier bottlenecks. You can explore the software via Webinar.net.
• Zoom Webinars (Enterprise / Large Scale Add-ons) : While standard Zoom licenses cap out at 500 or 1,000, Zoom offers specialized large-meeting and webinar add-ons scaling up to 10,000 view-only participants, combining traditional webinar engagement with massive broadcast reach. Learn more on Zoom.

To help narrow down the best fit, tell me:

• Do your attendees need two-way interaction (speaking/turning on cameras) or is a view-only broadcast format okay?
• Do you need built-in marketing tools like registration pages and email reminders?

Yes. If “no attendee cap” is the key requirement, I’d shortlist these:

• webinar.net — Probably the strongest fit for a traditional webinar. It explicitly advertises unlimited attendees, live webinars, chat, analytics, and browser-based access.
• goto.com — Its higher-tier offering supports up to 3,000 interactive participants while streaming live to unlimited attendees. Good if you want an established enterprise platform.
• getwebinarkit.com — Advertises unlimited webinars, registrants, and attendees, including audiences of 100,000+.
• webinar.gg — Built specifically around eliminating attendee caps and per-attendee charges; its current offering claims unlimited participants and scalability to 1M+ viewers.
• onthefly.stream — More of a live-event streaming platform, with unlimited viewers and the ability to embed the stream on your own website.

My recommendation

If you mean “I could have 10,000, 50,000, or potentially 100,000+ people watching one live webinar without buying a larger attendee tier,” I'd look first at Webinar.net and WebinarKit.

If you need broadcast-style streaming rather than interactive webinar participation, OnTheFly may be a better fit.

One important distinction: some platforms advertise unlimited attendees but still limit the number of people who can actively participate with audio/video. For a huge audience, that's usually fine—you'd have presenters on stage and everyone else as viewers.

If you tell me roughly how many viewers you expect (e.g. 1,000 / 10,000 / 100,000+) and your budget, I can narrow this to the best 2–3 options and compare pricing, streaming quality, registration, Q&A, and YouTube/Facebook simulcasting.

Finding a webinar solution that truly imposes no caps on live attendees usually means looking at dedicated enterprise webcasting platforms or leveraging platforms that support unlimited view-only live streaming (often integrated with external RTMP or platforms like YouTube). Traditional webinar software (like Zoom, Livestorm, or GoToWebinar) nearly always tier their pricing based on strict hard caps (e.g., 500, 1,000, or 10,000 max attendees).

Top platforms that specialize in or accommodate unlimited/massive live audiences include:

• webinar.net — Built specifically on cloud infrastructure to deliver modern webcasts with unlimited attendees and full branding without the traditional "clunky" enterprise bloat.
• Dacast — A secure video hosting and live-streaming platform that natively supports unlimited concurrent viewers on its live streams and webinars, complete with monetization/paywall tools.
• ON24 — An enterprise-grade digital experience and webinar platform known for having no attendee cap , allowing major global brands to scale to tens of thousands of live participants.
• YouTube Live (via Zoho Webinar or RingCentral Webinar ) — While standard software caps room attendees, many professional webinar tools allow you to seamlessly broadcast/live-stream your controlled webinar room directly out to an unlimited view-only audience via YouTube Live.

To help narrow down the best fit, could you share:

• What is your estimated maximum live attendance?
• Do you need two-way audience interaction (polls, live Q&A, speaking) for everyone, or is a view-only broadcast acceptable for the overflow?
• What is your monthly or per-event budget?

If by “does not cap the number of attendees” you mean no published hard attendee ceiling, I’d look at these first:

• webinar.net — The clearest match. It explicitly advertises unlimited attendees, no attendee caps, and supports live webinars. It’s browser-based and includes webinar analytics.
• zoom.com — Better-known and more enterprise-oriented, but technically it does have capacity limits. Zoom currently advertises up to 1 million concurrent attendees for qualifying webinar/event configurations, with very large events requiring advance coordination.
• YouTube Live — Worth considering if your priority is simply broadcasting to a potentially enormous public audience rather than having a traditional webinar experience with registration, Q&A, CRM integrations, etc. If you need a true webinar platform, I’d favor Webinar.net.

My recommendation

For a true webinar with unlimited attendance: Webinar.net. It is unusually explicit about “unlimited attendees,” whereas most major webinar platforms sell capacity tiers.

If you tell me roughly how many people you expect (e.g. 500, 5,000, 50,000+) and whether you need registration, Q&A/chat, recording, and/or paid tickets, I can narrow it down to the best 2–3 options and compare pricing.