tabletizer!

Turn your Android smartphone or tablet into a high-performance graphics tablet for Windows (specifically optimized for osu! and low-latency drawing).

Unlike legacy solutions, tabletizer! connects directly to custom OpenTabletDriver build over a lightweight TCP stream — no other software and zero kernel-mode driver hassles.

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Architecture

• Android App (app): Captures touch and stylus inputs at native screen polling rates (60Hz / 90Hz / 120Hz / 240Hz+) and streams raw FMA tablet reports directly over TCP port 3240 using an asynchronous zero-allocation ring buffer.
• OpenTabletDriver Integration: An embedded AndroidTabletHub inside OpenTabletDriver automatically detects ADB, sets up port forwarding, and exposes the Android device as a native virtual tablet.

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Features

• Direct OpenTabletDriver Support: Plug in and play. OTD automatically handles connection, filters, and absolute coordinate mapping.
• Ultra-Low Latency: Non-blocking touch pipeline with historical batch coordinate sampling and TCP_NODELAY.
• Live Diagnostics:
  • Live TPS (Touches Per Second) counter and packet counter on screen.
  • Connection status chip with mode indicator (USB (ADB) vs Wi-Fi).
  • Automatic Wi-Fi IP discovery.
  • In-app crash reporter and diagnostic guide.
• Configurable Work Area:
  • Aspect ratio presets: 16:9, 4:3, Fullscreen.
  • Position anchors: Center, Bottom Right, Bottom Left, Right Center.
  • Interactive on-screen drag and resize mode.
  • Real-time two-way active area synchronization with OpenTabletDriver.

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Quick Start

1. Wired Connection (USB / ADB — Recommended)

1. Install client app on your phone.
2. Turn ON USB Debugging in Android Developer Options.
3. Connect your phone to PC via USB and accept the "Allow USB debugging" prompt.
4. Download and Launch OpenTabletDriver on PC — it connects automatically!

2. Wireless Connection (Wi-Fi)

1. Connect PC and phone to the same Wi-Fi network.
2. Open the tabletizer app on your phone (your local Wi-Fi IP will be displayed on screen).
3. Download and Launch OpenTabletDriver.

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Building from Source

Android APK (Debug)

./gradlew.bat assembleDebug

The compiled APK will be generated at app/build/outputs/apk/debug/app-debug.apk.

Android APK (Release)

Configure key.properties with your keystore credentials and run:

./gradlew.bat assembleRelease

The signed release APK will be generated at app/build/outputs/apk/release/app-release.apk.