Piik

Piik is a free, open-source screen sharing tool designed for casual sharing among friends. One host can invite up to 20 viewers who watch in their browsers without installing anything. Users choose what to share—their entire screen, a single window, browser tab, or camera—and send an invitation link via chat.

The tool prioritizes direct peer-to-peer connections between participants, with optional media forwarding available on self-hosted instances. Piik offers a downloadable desktop app and an online browser version, supporting both light and dark themes, playback controls, and picture-in-picture viewing. The project is self-hostable on Linux servers for groups wanting their own deployment.