Open Collective
Open Collective



A friendly open source project to enable informal video calls.

Estimated Monthly Budget
Enough Bandwidth on Demo-Server
per month
Today's Balance


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Become a steady sponsor and help us to continuously improve Chatmosphere. Your logo will be shown on You will receive a receipt af... Read more

Starts at€100 EUR / month


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€985.75 EUR of €42,000 EUR raised (2%)

Starts at€500 EUR

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1,000 EUR since Feb 2022

chatmosphere is all of us

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Core Contributor


Core Contributor



€1,000 EUR


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Credit from User testing to chatmosphere

Invoice #65703
Financial contribution to chatmosphere (Sponsor)

Credit from Humain to chatmosphere

Contribution #520245
Today’s balance

€940.69 EUR

Total raised

€940.69 EUR

Total disbursed

--.-- EUR

Estimated annual budget

€1,000.75 EUR


Let’s get the ball rolling!

News from chatmosphere

Updates on our activities and progress.

Community Call #3 01.03.2022

Meet us here: This Community Call happens in parallel to the Prototype Fund Demo Week, so we wil...
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Published on February 19, 2022 by Anke Riemer

Community Call 01.02.22 8pm CET

Meet us here:
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Published on February 1, 2022 by Anke Riemer


We are a small group of friendly humans working on an open source project to make informal video calls more fun and dynamic. If you want to see how Chatmosphere works: Try our Demo

The idea emerged during the first SARS-CoV-2 shutdown when some of us started a virtual bar. We found informal group conversations restricting and hierarchical, as the majority of tools are created to enable (corporate) meeting culture. Where were the dynamics of a self-organizing crowd hanging out at one big table together? The big table, where so many jokes, comforting talks, discussions, and encounters happen. Where utopias and ideas would emerge?

It’s our goal to find interaction patterns that enable informal, unmoderated video calls. We work on the hypothesis, that we can prototype these interactions based on spatialized sound. 

This project is open-source, based on the Jitsi API. Two iterations have been funded by the Prototype Fund from September 2020 to February 2021 and from September 2021 to February 2022. See the Code

Our demo is a prototype, so you should know: Chrome as the browser works best, Mobile does not really work, if stuff is weird please reload. We are currently testing how many participants can join our demo server at the same time. Contributions to our maintenance costs or code are very welcome.

Our team


Core Contributor


Core Contributor