Key Mapper

Key Mapper

Make shortcuts for ANYTHING! Remap volume, power, keyboard, or floating buttons!

sds100 Keyboard & IME System

Download (13 MB) Website

Screenshots

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Description

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?
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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?
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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
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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!
keymapper.app/discord

See the code for yourself! (Open source)
github.com/keymapperorg/KeyMapper

Read the documentation:
keymapper.app

Anti-features

Properties of this app that are worth knowing about before installing.

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Versions

Version Date Size Requires Android Download
4.3.0-foss current
afc8aecfb603a9f4…
 2026-07-16 13 MB API 26
4.2.1-foss
527691e95ac06564…
 2026-06-13 13 MB API 26
4.2.0-foss
02580fb4f775c479…
 2026-06-06 13 MB API 26

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • FingerprintUnlock with a fingerprint.
  • NotificationsShow notifications.
  • READ_LOGS
  • Run at startupStart automatically after the device is switched on.
  • Installed appsSee which apps are installed.
  • WRITE_SECURE_SETTINGS
  • Precise locationDetermine the location via GPS.
  • ANSWER_PHONE_CALLS
Show 23 more permissions
  • BluetoothConnect to Bluetooth devices.
  • Bluetooth connectionConnect to paired Bluetooth devices.
  • BLUETOOTH_ADMIN
  • Wi-Fi stateRead information about the Wi-Fi connection.
  • Change Wi-FiTurn Wi-Fi on and off or switch networks.
  • Network stateCheck whether and how the device is connected.
  • EXPAND_STATUS_BAR
  • Internet accessSend and receive data over the internet.
  • CameraTake photos and videos.
  • VibrationControl the vibration alert.
  • ACCESS_NOTIFICATION_POLICY
  • Phone stateDetect ongoing calls and read device information.
  • REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
  • REORDER_TASKS
  • Read storageRead files on the device storage.
  • System settingsChange system settings.
  • Place callsCall phone numbers without asking again.
  • Send SMSSend text messages (may cost money).
  • Audio settingsAdjust volume and audio output.
  • permission.RUN_COMMAND
  • Write storageCreate and change files on the device storage.
  • keymapper.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • permission.API_V23

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