F-Droid Search: keyboard

Two-thumb keyboard: both thumbs swipe and tap at once. No network access.GPL-3.0-or-later

The Predictable KeyboardAGPL-3.0-or-later

Voice input for any keyboard — transcribe with your own API endpointsMIT

An open-source on-device voice IME (keyboard) for Android using the Vosk libraryGPL-3.0-only

Virtual keyboard for writing expressive messages in various text stylesMIT

Keyboard with International Colemak layoutApache-2.0

Keyboard for secure E2EE communication through signal protocol in any messengerGPL-3.0-only

Use your phone as a Bluetooth keyboard, gamepad, trackpad, and media remoteAGPL-3.0-or-later

Keyboard (IME) with tabbed file manager, offline word prediction and TAB key.MIT

A minimalist Chinese keyboard.GPL-3.0-only

Keyboard with customisable one-click responses and powerful automation commands.GPL-3.0-only

Customizable open-source keyboard with a flavour of Swiss-RomanshGPL-3.0-only

Open-source gesture keyboard with Termux supportGPL-3.0-only

Voxscribe is an offline voice keyboard that transcribes speech on-device.MIT

Traditional Chinese keyboard for the EZ Input Method, with English predictions.GPL-3.0-or-later

Hangul keyboard with Esc, Tab, Ctrl and F-keys. 470 KB, one permission.MIT

EweSticker: Sticker Keyboard for using custom stickers in messagingMIT

An offline Bengali keyboard using the Probhat layout. No permissions.GPL-3.0-or-later

Offline Japanese keyboard with mozc conversion, flick and qwertyApache-2.0

Voice dictation keyboard that transcribes on hardware you controlAGPL-3.0-only