Key Mapper

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18
downloads
8.0
android

AI summary

Key Mapper lets you remap any physical button on your Android device – volume keys, side key, gamepad, keyboard, fingerprint sensor – and create on-screen buttons. It supports complex macros with over 100 actions, triggers, and constraints. This FOSS build has no ads or tracking. Note: requires accessibility service and many permissions to function fully.

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: • Display resolution constraint • Ringer mode constraint • Set "do not remap" by default in settings • Bug fixes

View the complete changelog at: http://keymapper.app/changelog

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What's new

v4.3.0-fossJul 25, 2026
  • Added
  • #2184 Add a display resolution constraint. Pick from the display's supported resolutions or enter a custom width and height. #2163 Add ringer mode constraints (Ring, Vibrate, Silent). #2174 Add "Do not remap by default" preference to the default options settings page.
  • Fixed
  • #2187 App constraints do not work with floating buttons

About this version

Version
4.3.0-foss (257)
Size
12.47 MB
Requires Android
8.0
Target SDK
26
Architecture
armeabi-v7a, x86, x86_64, arm64-v8a
Downloads
18
Updated
Jul 25, 2026
Package
io.github.sds100.keymapper

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