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Bilibili UP host spent 20 billion tokens to create it! A free and open-source screen-sharing tool that supports up to 20 people sharing and using it together, Piik

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📂Windows Software
🕒Last updated: 10/25/2026
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Description

Wanting to show something to a friend, or have two people pick photos or watch a game together, seems like a small thing, but only when you actually try it do you realize the hassle: first have the other person download software and register an account, and some even require a membership. After all that back and forth, the other person loses interest. Piik is a free and open-source screen-sharing tool with a simple idea: send out the link, and your friend can see your screen in a browser without first installing a bunch of things on their own computer.

Software Features

Beautiful and clean: send out the sharing link, and your friend does not need to register or install a client; they can open it on a phone or computer and come in, and the interface is clean and beautiful

More direct connection: by default it uses peer-to-peer, with the image transmitted directly between the two people without first going around through an intermediate server; up to 20 people per room

Free and open source with no barrier: the code is public on GitHub and uses the MIT license.

Multi-platform support: those used to clients can install the desktop app, and there is also a web version; of course, keeping a share running for a long time is more worry-free than reopening the web page each time

Software Screenshots

Additional notes:

If you just want to temporarily pull a friend in to look at your screen, simply open the official website and send the link over

If you are the kind of person who likes to keep tools in your own hands, the GitHub repository also leaves the self-hosting path open.

Supporting Study Materials

This course comes with a materials pack. Members receive the access link by email after requesting the course.

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