OpenMapper

High-performance, standalone Android gamepad keymapper powered by Shizuku. The 100% Free, Modern & Open-Source Alternative to Mantis Gamepad Pro, Panda Gamepad & Octopus. Play touch-only mobile games with any physical gamepad without root and with ultra-low latency (< 0.5 ms).

🚀 Free & Modern Alternative to Mantis Gamepad Pro, Panda Gamepad & Octopus Unlike proprietary apps (Mantis Gamepad Pro, Panda, Octopus), OpenMapper is 100% free, without annoying ads, without paid subscriptions or paywalls, and fully open-source. It offers native sub-millisecond zero-allocation input streaming, e-Sport 180° flick boost curves, full haptic feedback, and a built-in community profile hub!

✨ Features 🌐 Serverless Community Hub: Explore, vote (👍/👎), search, and download community-made game presets in 1 click (powered by Cloudflare D1). 🏎️ Zero-Allocation Binary Input Engine: Direct streaming from /dev/input/event* with zero garbage collection and <0.5 ms input lag. 🎯 Seamless 360° Camera (Dual-Pointer Handoff): No screen edge stutters or sudden angle snapping during infinite rotations. 🚀 Dynamic Boost & 180° Instant Flick: Micro-precision center aim combined with fast 180° turns at stick edge + ADS Scope Safety lock. 🧲 RAA Keep-Alive & Organic Jiggle Strafe: Rotational Aim Assist micro-dithering and humanized anti-detection strafe dodge during fire. 📳 Dynamic Haptic Feedback: Realistic weapon recoil vibration and mechanical reload pulses with in-app test buttons. 🎮 In-App Key Rebinding: Easily remap Fire, Reload, and any button directly inside the app with Hold, Tap, or Slide Cancel modes. 🪄 Built-in Gamepad Diagnostic: Real-time stick visualizer, 3-second automatic drift test, and circularity/outer-deadzone calibration. 🔄 In-App Auto-Updater: Directly detects and downloads new GitHub releases within the app.