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Download Key Mapper & Floating buttons 4.2.1 APK
Version: 4.2.1 (256)
Languages: 24
Package: io.github.sds100.keymapper
Downloads: 22
Target: Android 16 (API 36)
120, 160, 213, 240, 320, 480, 640dpi
What's new in Key Mapper & Floating buttons 4.2.1
• Talkback actions
• Monochrome app icon
• "Any input device" is the default for triggers
• Bug fixes and accessibility improvements
📖 View the complete changelog at: keymapper.app/changelog
About Key Mapper & Floating buttons 4.2.1
Make custom macros on your keyboard or gamepad, make on-screen buttons in any app, and unlock new functionality from your volume buttons!
Premium
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
- Mouse buttons
- 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:
- 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!
keymapper.app/discord
See the code for yourself! (Open source)
github.com/keymapperorg/KeyMapper
Read the documentation:
keymapper.app
Key Mapper & Floating buttons 4.2.1 variants
This release may come in several variants. Consult our handy FAQ to see which download is right for you.
Version:4.2.1-foss
Uploaded:June 13, 2026 at 10:54PM UTC
File size:12.92 MB
Version:4.2.1(256) for Android 8.0+ (Oreo, API 26)
Uploaded:July 8, 2026 at 3:28PM UTC
File size:12.20 MB
Downloads:22
Version:4.1.0(251) for Android 8.0+ (Oreo, API 26)
Uploaded:May 15, 2026 at 5:55AM UTC
File size:12.19 MB
Downloads:222
Version:4.0.5(247) for Android 8.0+ (Oreo, API 26)
Uploaded:March 2, 2026 at 6:25PM UTC
File size:11.95 MB
Downloads:434
Version:4.0.4(246) for Android 8.0+ (Oreo, API 26)
Uploaded:February 24, 2026 at 10:23AM UTC
File size:11.95 MB
Downloads:167
Version:4.0.3(244) for Android 8.0+ (Oreo, API 26)
Uploaded:February 10, 2026 at 10:14AM UTC
File size:11.97 MB
Downloads:306
Version:4.0.2(242) for Android 8.0+ (Oreo, API 26)
Uploaded:February 5, 2026 at 2:19PM UTC
File size:11.97 MB
Downloads:124
Version:4.0.1(241) for Android 8.0+ (Oreo, API 26)
Uploaded:February 3, 2026 at 9:18AM UTC
File size:11.92 MB
Downloads:70
Version:4.0.0(238) for Android 8.0+ (Oreo, API 26)
Uploaded:January 27, 2026 at 10:27AM UTC
File size:11.91 MB
Downloads:190
Version:4.2.1
Uploaded:July 8, 2026 at 3:28PM UTC
File size:14.25 MB
Downloads:22
Version:4.1.0
Uploaded:May 15, 2026 at 5:55AM UTC
File size:14.21 MB
Downloads:222
Version:4.0.5
Uploaded:March 2, 2026 at 6:25PM UTC
File size:13.37 MB
Downloads:434
Version:4.0.4
Uploaded:February 24, 2026 at 10:23AM UTC
File size:13.37 MB
Downloads:167
Version:4.0.3
Uploaded:February 10, 2026 at 10:14AM UTC
File size:13.35 MB
Downloads:306
Version:4.0.2
Uploaded:February 5, 2026 at 2:19PM UTC
File size:13.35 MB
Downloads:124
Version:4.0.1
Uploaded:February 3, 2026 at 9:18AM UTC
File size:13.36 MB
Downloads:70
Version:4.0.0
Uploaded:January 27, 2026 at 10:27AM UTC
File size:13.36 MB
Downloads:190
Version:3.2.1
Uploaded:November 4, 2025 at 4:03PM UTC
File size:13.10 MB
Downloads:451
Version:3.1.1
Uploaded:May 18, 2025 at 7:03AM UTC
File size:13.15 MB
Downloads:4,153
