Create community around your content

Clowdr makes it easy to create an engaging virtual conference experience, giving you time to focus on the things that matter

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Running a virtual conference can be hard work

Clowdr solves these problems and more, giving you time to focus on the thing that really matters: bringing people together.

Clowdr makes it simple to get live or pre-recorded video from your presenters and make it available to your attendees.

Here's how it works.

Call for content

Import your program, then send requests for authors and presenters to upload their videos (and other content). Authors can edit subtitles that are generated for their videos.

Review and approve uploaded content.


Optionally publish your pre-recorded videos a week in advance of the conference.

Attendees can use Clowdr chat to discuss your content. Now is a great time to gather questions for authors ahead of the live event.

Go live!

Clowdr turns your conference program into a fully-automated live stream that switches seamlessly between pre-recorded content and live sessions.

You control who has access to the backstage area, and can give your session chairs live control over the layout of the video.

Post-publish and archive

Your live-streamed events are automatically recorded by Clowdr so that attendees can watch or rewatch them later.

Choose whether to publish your pre-recorded content and live recordings directly to YouTube, including subtitles.

Learn more about Clowdr

Why go virtual with Clowdr?

Built for your event

Clowdr was founded by academics with decades of combined experience organising large, complex academic conferences. It handles everything from simple seminars to week-long, multi-track conferences with thousands of attendees.

By the community, for the community

Clowdr is a social enterprise, incorporated as a Community Interest Company. Our mission is to make inclusive, accessible, climate-friendly virtual conferences just as socially engaging as physical conferences.

Proudly open source

If you want to do-it-yourself, you can run your very own Clowdr. We also support researchers who want to modify Clowdr or use it in their research.

What we offer


We worry about the technology; you organize the conference. Use Clowdr - hosted by the people who built it.

Expert support and advice

We can advise you on how to plan and set up your conference and provide virtual on-site support to make sure everything runs smoothly.

Advanced customisation

Want to wow your attendees with something new? We can design and build it.


Want to run the Clowdr platform yourself? We can help you with that.

Find out more about our packages


© Clowdr CIC 2021

Clowdr is a social enterprise dedicated to creating sustainable, inclusive and engaging conferences.

Clowdr is a UK Community Interest Company, number 12984216.

Clowdr was initially made possible thanks to support by the US National Science Foundation under awards CCF-2035003, CCF-2035101 and CCF-203500 and support from