I built a fun video meeting app with 2D physics and proximity chat
Hi HN! https://flat.social is a web video meeting app for organising fun online meetings & social events. Each participant can move around and talk with others in their proximity. Here is a quick demo if you wanna see it in action: https://youtu.be/Y2yH3twjrx4 I’ve been on it solo for around a year right now. Tech used is Next.js, Typescript, PIXI.js on the front-end and Node, Mediasoup, Socket.io and Matter.js (physics engine) on the backend. Feel free to jump in into the demo room (https://flat.social/f/Flat.Social-Demo) to say hi, I’ll be…
I built a fun video meeting app with 2D physics and proximity chat launched on June 22, 2022 with 166 votes, #164 of 3,005 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 4 years on.
In plain words
Flat.social is a web-based video meeting app that lets participants move around a 2D space and communicate with others nearby. Built for organizing online social events and meetings, it uses physics simulation to create an interactive environment where proximity determines who can hear whom. The app runs in browsers and combines video chat with spatial movement mechanics.
written from the facts on this page · September 2026
From the sources
Remote teams use flat.social to socialize, collaborate and throw virtual parties! Create a permanent meeting space where each guest can move around, talk with others in proximity and hide for gossip in private rooms.
A playful virtual space for team socials, events and classes. Spatial audio, mini games and no downloads. Free for up to 5 people, right in the browser.
Create a playful virtual space where your guests can walk up to each other, talk naturally and be together, right in the browser. “ This seems a kazillion times smarter than literally every goofy metaverse thing I've seen lately. Well done. ” “ As someone who has used Gather a bit, this blows it out of the water. Incredibly intuitive and fun way to move around and talk to your friends and coworkers. ” “ This really surprised me! It's super polished already and works great! Gonna try to do our company's virtual happy hour here. ” “ Love the way that you interact with the space. Feels very intuitive. Nice job! ” “ The video / virtual env seems very well integrated. I have to admit the demo…from flat.social
In the maker’s words, at launch
Hi HN! https://flat.social is a web video meeting app for organising fun online meetings & social events. Each participant can move around and talk with others in their proximity. Here is a quick demo if you wanna see it in action: https://youtu.be/Y2yH3twjrx4 I’ve been on it solo for around…
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Gather - Virtual Social Events2020 · apps.apple.com · ▲28Stay close when you're distant with easy group video chat!
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Source: Show HN post ↗ · launch text quoted in part
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