second-screen

Deskreen turns any device with a web browser into a secondary screen for your computer. ⭐️ Star to support our work!

Make your iPad/tablet/computer into a secondary monitor on Linux.

Turn your Android tablet into a second monitor on Linux (extend screen)

Use your iPad as a second screen for Windows. Mirror or extend over Wi-Fi or USB, with touch, keyboard, Apple Pencil and PC audio.

DS-inspired Pokégear and C-Gear companion mod for Pokémon Gen 1-3 in Gen1Recomp. Live maps, Pokédex, touch battle controls and local phone display on Android, Windows and Linux.

Open Screen Application Protocol + Open Screen Network Protocol

Presentation API

Tactical-HUD Android companion for the XaeroDeck mod: second-screen Xaero map with radar, waypoints, chat relay, on-map Meteor click-GUI overlay, watchdog alarms (player on radar, totem pop, low HP/elytra), and an ERA overlay showing chunk generation versions and griefed terrain. Compose, auto-discovery, token-paired.

Remote Playback API

把吃灰的安卓电视、旧手机、闲置平板变成 AI 的投送屏：agent 生成网页，经局域网直接投到设备上显示。无云端、无账号、不投屏。官网：https://aicast.lvchen.fun

Use an iMac as a display for an Apple Silicon Mac

Turn an old Android phone into a retro-pixel desk dashboard for your Windows PC: clock, PC stats, weather, prayer times, lyrics and a control deck, over USB.

用一根 USB 数据线把安卓手机/平板变成 Windows 的第二块显示器——是真扩展桌面而不是投屏镜像。端到端延迟实测 5–11 ms，支持触摸反控，拔线即摘屏。全部源代码由 AI 编写。

Deskreen fork - As if your screen is "echoing" on another device - Easy ScreenShare - Transform other devices into virtual displays.

说出你的需要，让应用在身边的屏幕上诞生——云端编码 Agent 当场生成 Web 应用，投到电视或投影上，并用语音继续操作。

Free second-screen companion for Anno 117: live economy stats, history, efficiency and alerts. One .exe, no mods, everything stays local.

Turn any Android phone or tablet into a second monitor, touch screen and pen tablet for Mac and Windows. USB or Wi-Fi, hardware HEVC, pressure-sensitive pen, open protocol.

Create and stream a virtual headless display on Omarchy with Hyprland and WayVNC.

Turn iPhone, iPad, and Android into a second display for macOS / 将 iPhone、iPad 和 Android 变成 Mac 第二屏。Open source, local-first, HEVC, experimental high refresh.

Live second-screen companion for FFXII The Zodiac Age on the AYN Thor (GameNative)