The DS experience, for every emulator.
Show live game data on your second screen, or on top of the game.

     

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EmuLnk connects to emulators over UDP, reads game memory in real time, and renders it as themed HTML pages. It supports three modes: full-screen dashboards on a second screen, floating overlay widgets on top of the game, or both at once (bundle). Themes are HTML/CSS/JS WebViews driven by live data from JSON profiles. Themes can also write back to game memory, run macros, play sounds, and trigger haptic feedback.

Screenshots coming soon

Supported Emulators

Emulator	Systems	Fork
RetroArch	SNES, Genesis, NES, GB, GBC, GBA, PS1, N64	retroarch-lnk
Dolphin	GameCube, Wii	dolphin-lnk
PPSSPP	PSP	ppsspp-lnk
melonDS	NDS, DSi	melonds-lnk
Azahar	3DS	azahar-lnk

[!NOTE] Each emulator fork adds the EmuLnk binary UDP protocol. Install the fork alongside EmuLnk to use it.

How It Works

flowchart TB
    subgraph S1["Screen 1"]
        EMU["Emulator + Overlay Widgets"]
    end

    subgraph BG[" "]
        APP["EmuLnk App"]
    end

    subgraph S2["Screen 2"]
        THEME["Theme Dashboard"]
    end

    EMU -- "identity · UDP" --> APP
    APP -- "memory read · UDP" --> EMU
    APP -- "live data · JS Bridge" --> THEME

    style S1 fill:#1a1730,stroke:#B47CFF,color:#B47CFF
    style S2 fill:#1a1730,stroke:#00E5FF,color:#00E5FF
    style BG fill:none,stroke:none
    style EMU fill:#252142,stroke:#B47CFF,color:#e0e0e0
    style APP fill:#252142,stroke:#B47CFF,color:#e0e0e0
    style THEME fill:#252142,stroke:#00E5FF,color:#e0e0e0

1. Detect: Sends an EMLKV2 handshake over UDP; emulator responds with JSON containing game_id, game_hash, and platform
2. Match: Hash resolves to an exact profile, or serial falls back to a compatible one
3. Poll: Data points are read from emulator memory at a configurable rate (default 5 Hz)
4. Render: Live data is pushed to the theme WebView (full-screen dashboard or floating overlay widgets) via JavaScript bridge

Installation

Download the latest APK from Releases or import the full EmuLnk suite into Obtainium:

[!TIP] obtainium.json: Includes EmuLnk app + all emulator forks + repo tracking, grouped under one category. If you imported EmuLnk before the package IDs were corrected, delete the affected RetroArch, Dolphin, or PPSSPP entries from Obtainium and re-import this file.

Building from Source

git clone https://github.com/EmuLnk/emulnk.git
cd emulnk
./gradlew assembleDebug

Requires Android SDK 35 and JDK 11.

Creating Themes

Themes are self-contained folders with HTML, CSS, JS, and a theme.json manifest. See the full documentation:

Resource	Description
Getting Started	First theme walkthrough
Theme Format	Manifest and file structure
Theme API	Data contract and updateData()
Bridge Methods	JavaScript bridge reference (emulink.*)
Profile Format	Data point definitions
Platform Quirks	System-specific memory notes

Browse community themes and profiles in emulnk-repo.

Project Repos

Repo	Description
emulnk	Android companion app
emulnk-repo	Themes, profiles, and system configs
retroarch-lnk	RetroArch fork with UDP protocol
dolphin-lnk	Dolphin fork with UDP protocol
ppsspp-lnk	PPSSPP fork with UDP protocol
melonds-lnk	melonDS fork with UDP protocol
azahar-lnk	Azahar fork with UDP protocol

License

PolyForm Noncommercial License 1.0.0