Show HN: Screen Sharing in the Browser

219 points · tonghohin · 8 days ago

Seeing all the hype around Bolt.new, I decided to give it a try, and within just 30 minutes, I built a fully functional web app for screen sharing.

How It Works:

- One user opens a room and receives a unique code.

- Participants join by simply entering the code to view the shared screen.

After that initial build, I moved the project to Cursor to continue iterating and enhancing its features.

Github: https://github.com/tonghohin/screen-sharing

Demo: https://share-your-screen.vercel.app

54 comments

thrdbndndn · 8 days ago

Did a quick test on Demo site. It works like a charm.

One issue: when I stopped sharing, my audience (my another computer) can still see my shared screen (I assume the last frame), what I think it shouldn't. And there is no indication or whatsoever that I have stopped sharing.

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karhuton · 8 days ago

Tried making one that would work on almost any device:

https://bluescreen.live

https://github.com/karhuton/bluescreen

Runs on Hetzner EU currently.

Maybe I should open source it.

atmanactive · 8 days ago

Great! Thanks.

While we're on the subject of WebRTC, if anyone would need MIDI over WebRTC, here is my take on it:

https://github.com/AtmanActive/webmidi-rtc-transport

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hobo_mark · 7 days ago

Similar tool I like and used to self-host for personal use: https://screego.net/#/

mvkel · 8 days ago

What I love about developing with cursor et al is it forces devs to keep the app simple.

No custom UI bloat when shadcn will do; no feature creep when the outline is fulfilled.

Simple apps < 30,000 LOC means cursor can keep the code base in the context window, so its generations stay high quality.

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