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Show HN: Screen Sharing in the Browser
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 https://github.com/tonghohin/screen-sharing
Demo: https://share-your-screen.vercel.app https://share-your-screen.vercel.app
- thrdbndndn 2y agoDid 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.
- tonghohin 2y agoThanks for the feedback! I’ll check out the issue. It still has a lot to improve!
- 1oooqooq 2y agowhy the source have an accordion and carousel component? :)
- ddtaylor 2y agoAre you talking about in components/ui? If so that's ShadCN and it works by fetching components and copy/pasting them into your project rather than trying to continue to keep the components up to date.
- tonghohin 2y agodon't know why Bolt.new downloaded all the shadcn components for me lol
- mandeepj 2y agoGave it a quick run! Works great. The notification to share your screen goes away quickly. Is there any way to get back to it? I generated a new code to fire the notification again.
- tonghohin 2y agoI just fixed that, the share button should stay forever now until you click it.
- reynaldi 2y agoAwesome demo! Are you paying for the TURN server?
- tonghohin 2y agoNo, it's not using TURN server now.
- deathanatos 2y ago> No, it's not using TURN server now. You state it uses PeerJS. And indeed, the code calls from PeerJS, const peer = new Peer(); (https://github.com/tonghohin/screen-sharing/blob/18f6ab93716cf5bdec57625b91c6620cc84c173b/app/join/page.tsx#L33 https://github.com/tonghohin/screen-sharing/blob/18f6ab93716...) I.e., it constructs a PeerJS Peer without manually specifying PeerOptions. That class, in turn, states, /** * Configuration hash passed to RTCPeerConnection. * This hash contains any custom ICE/TURN server configuration. * * Defaults to {@apilink util.defaultConfig} */ config?: any; Since we're not overriding it, we take the default. And `defaultConfig` leads us to: https://github.com/peers/peerjs/blob/c073252f879b57757f8a82d40302bbe06a3890e0/lib/util.ts#L38-L51 https://github.com/peers/peerjs/blob/c073252f879b57757f8a82d... which lists STUN & TURN servers. … so it sure looks to me like it is using a TURN server…
- tonghohin 2y agoSorry for the misleading wording, I was trying to say that I'm not paying for any TURN servers. You are totally right, PeerJS is still using TURN server under the hood. Thanks for pointing that out!
- yroc92 2y agoDoes this share your screen across domains? If so, how?
- tonghohin 2y agoNo, it doesn't share across domains.
- humptybumpty 2y ago-
- kapitanjakc 2y agoFor mobile I find google meet the best, I think even Whatsapp is now allowing to screen share.
- IshKebab 2y agoIf you can get remote control to work that would be amazing. I assume that's impossible with current browser APIs though. A real pain point of Google Meet.
- atoav 2y agoI too yearn for the day where my parents webbrowser can run Win+R and delete their System32 directory after they clicked "Ok" on a prompt whose message they wouldn't be able to tell me if I paid them a billion Euros for it.
- IshKebab 2y agoIt can already do that. The prompt just says "Click here to download".
- atoav 2y agoSo you say we need a easily accessible RCE-API to make this even simpler?
- IshKebab 2y agoI will ignore your dumb reductionist take... The problem with doing it via downloads or plugins is that it's OS and maybe browser specific (have fun making your plugin for Firefox on Windows, Chrome on Mac, etc.), and also it's extra friction. The reason I want to remote control someone's computer is because talking them through the actions is too tedious. The last thing I want to do is talk them through downloading and installing some browser plugin first. Security & scamming is obviously a concern but let's not pretend it is impossible to solve. People thought the full screen API shouldn't be done because of security concerns, but that's laughable now. As an initial step they could at least support showing a "laser pointer" on other people's screens so you can say "click here" instead of "up a bit, no... go back.. no third from the bottom, yeah that one". That has zero security implications.
- 2y ago
- low_tech_love 2y agoSlightly off-topic, but I’ve been searching for a long time for something like this, but for text chat: go to a website; create a room; share a code/link with others; people join and chat; then at some point in the future the room simply disappears (you can save a log if you want). Ideally anonymous with the best possible cryptographic implementation. Has anyone stumbled upon something similar? I hate having to register and login to every chat platform, especially bloated ones like Discord and Slack. The closest one to what I want is gitter but it requires a GitHub signin.
- croisillon 2y agoJitsi Meet?
- tasoeur 2y agoSomething like this? https://offrecord.ca/#lobby https://offrecord.ca/#lobby
- akshayKMR 2y agoMine is a work in progress, but chat should work just fine. Let me know if you have any questions/concerns. https://oorja.io/ https://oorja.io/ click create space -> choose proceed as anonymous -> In your space, use chat or other apps. It's end to end encrypted (using the hash-frag in url as key, AES-128 bit GCM)
- cess11 2y agoDo some Phoenix tutorials and you have your own.
- jeroenhd 2y agoI think https://call.element.io/ https://call.element.io/ works like that. Calls are encrypted and the client includes screen sharing and all the standard video conferencing features. Jitsi Meet is also a classic example of this, though these days it requires at least one logged-in "moderator" user to work.
- deleted 2y ago[deleted]
- sgrodnik 2y agoI'm not sure, but is it possible to make it work on Android? I've tried on my pixel 7a, it gave me the code, I pasted it in another device in Safari, but it was only Loading... on the button.
- tonghohin 2y agoYeah, it's not working that well on phones right now, working on it...
- chuanliang 2y agoNice work. Similar to https://pin.gl/ https://pin.gl/
- 5evOX5hTZ9mYa9E 2y agoDoesn't work on Linux?
- deleted 2y ago[deleted]
- tonghohin 2y agoIt should work, is it not working for you?
- atmanactive 2y agoGreat! 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 https://github.com/AtmanActive/webmidi-rtc-transport
- Ylpertnodi 2y agoPerfect timing! Seems to suit (some of) my needs, thanks. And +1 for mentioning sonobus - that's a lot of fun, too.
- ghusbands 2y agoBrowser-based screen sharing is the subject. Is it normal to advertise unrelated projects in HN comments?
- atmanactive 2y agoI don't know. Is it? The afore mentioned webapp is based on WebRTC so, not totally unrelated. I have nothing to advertise as I have nothing to gain from this. I just wanted to offer additional solution for people that might find it useful. Also, judging by the other comments, it seems that someone did find it useful. Furthermore, reading through other comments on this thread, there are a lot of other WebRTC projects mentions anyway, and many of them have nothing to do with screen sharing.
- karhuton 2y ago[dead]
- mvkel 2y agoWhat 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.
- inquisitive-me 2y ago[dead]
- lopkeny12ko 2y agoImmediately upon loading the homepage: > Application error: a client-side exception has occurred (see the browser console for more information).
- tonghohin 2y agoI guess you visited the page right after a new deployment. This happens sometimes due to a version mismatch in Next.js after deployment. Refreshing the page should fix it!
- hobo_mark 2y agoSimilar tool I like and used to self-host for personal use: https://screego.net/#/ https://screego.net/#/
- antback 2y agoIt works great!! I Like it!
- shivamrishi 2y ago[dead]
- tonghohin 2y agoJust deployed a new feature, audio can also be shared now! But it's only supported in Chrome and Edge, and users must select the option to share a tab. It won't work for sharing a window or whole screen.
- anduc 2y agowow, I didn't know this was possible
- typeofhuman 2y agoWould be great if I could share a URL to the room, instead of a room code.
- tonghohin 2y agoThanks for the idea! I just made that feature!
- blacktechnology 2y agoThis is quite similar to https://screensharing.net https://screensharing.net. Works like magic. Thanks for sharing!