Software · Development

Keyboard App Builder

Build apps with Keyman keyboards.

Completely free
Linux
Open source

At a glance

Keyboard App Builder is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
Commercial use allowed

About

Keyboard App Builder helps you to build customized keyboard apps for Android smartphones and tablets. A keyboard app allows users to add a system keyboard to their device, enabling them to type in their language within other apps such as Gmail, Facebook and WhatsApp. To build an app, you specify the Keyman keyboard layout files and lexical models to use, the app name, the fonts, the colors, the about box information and the icons. Keyboard App Builder will package everything together and build the customized app for you. You can then install it on your phone, send it to others by Bluetooth, share it on microSD memory cards and publish it to app stores on the Internet.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 10 November 2026
Last technical check: 8 November 2026
Description from Flathub — AppStream (Flathub)

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