AI summary
Open-source key remapper that turns phone buttons, gamepads, keyboards, and fingerprint sensors into custom macro triggers. Create on-screen buttons, chain 100+ actions with delays and constraints, and control apps, media, and system settings. New in 4.4.0: Xiaomi battery optimization tips, sortable key maps, cycle keyboard language, scalable screen gestures, and Android TV export/import.
Generated by AI. May contain inaccuracies.
About this app
Make custom macros on your keyboard or gamepad, make on-screen buttons in any app, and unlock new functionality from your volume buttons!
Key Mapper supports a huge variety of buttons and keys*:
- ALL your phone buttons (volume AND side key) - Game controllers (D-pad, ABXY, and most others) - Keyboards - Headsets and headphones - Fingerprint sensor
Not enough keys? Design your own on-screen button layouts and remap those just like real keys!
What shortcuts can I make? --------------------------
With over 100 individual actions, the sky is the limit. Build complex macros with screen taps and gestures, keyboard inputs, open apps, control media, and even send intents directly to other apps.
How much control do I have? ---------------------------
TRIGGERS: You decide how to trigger a key map. Long press, double press, press as many times as you like! Combine keys on different devices, and even include your on-screen buttons.
ACTIONS: Design specific macros for what you want to do. Combine over 100 actions, and choose the delay between each one. Set repeating actions to automate and speed up slow tasks.
CONSTRAINTS: You choose when key maps should run and when they shouldn't. Only need it in one specific app? Or when media is playing? On your lockscreen? Constrain your key maps for maximum control.
* Most devices are already supported, with new devices being added over time. Let us know if it's not working for you and we can prioritize your device.
Not currently supported: - Mouse buttons - Joysticks and triggers (LT,RT) on gamepads
Security and accessibility services ---------------------------
This app includes our Key Mapper Accessibility service that uses the Android Accessibility API to detect the app in focus and adapt key presses to user-defined key maps. It is also used to draw assistive Floating Button overlays on top of other apps.
By accepting to run the accessibility service, the app will monitor key strokes while you're using your device. It will also emulate swipes and pinches if you are using those actions in the app.
It will NOT collect any user data or connect to the internet to send any data anywhere.
Our accessibility service is only triggered by the user when pressing a physical key on their device. It can be turned off any time by the user in the system accessibility settings.
Come say hi in our Discord community! http://www.keymapper.club
See the code for yourself! (Open source) code.keymapper.club
Read the documentation: docs.keymapper.club
What's new
- "Reduce app killing" tips for Xiaomi/Redmi/Poco devices • Sort key maps by enabled/disabled • Cycle keyboard language action • Custom seek amount for media step actions • Export/import key maps on Android TV • Fix some crashes when auto starting Expert Mode • Fix shell commands failing with Windows line endings • Screen tap/swipe/pinch actions now scale to display resolution • Many other bug fixes and improvements
- 📖 View the complete changelog at: http://keymapper.app/changelog
About this version
- Version
- 4.4.0-foss (264)
- Size
- 14.04 MB
- Requires Android
- 8.0
- Target SDK
- 26
- Architecture
- arm64-v8a, armeabi-v7a, x86, x86_64
- Downloads
- 27
- Updated
- Sep 18, 2026
- Package
- io.github.sds100.keymapper
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