Features you'll love.
KeyboardKit gives you everything you need to build a native & fully customizable keyboard.
BiAffect
A medical keyboard that tracks mental health through keystroke dynamics.
Build your own
custom keyboard.
The leading Swift and SwiftUI custom iOS keyboard framework.
Replace the native iOS keyboard with your own fully customizable replacement. Make your app's features available in all apps.
Loved by the community.
KeyboardKit is used by indies, startups and enterprises, all over the world.
100k+
Active Users
75
Supported Locales
1.8k+
GitHub Stars
With KeyboardKit, creating Lingo’s custom keyboard extension felt like magic.
Stefan Liesendal, Lingo
KeyboardKit provided us with a production-ready keyboard engine, to let us focus on BossAI.
Uddeshya Agrawal, CEO BossAI
What is a Custom Keyboard?
A custom keyboard can replace the native software keyboard, and lets users use your app's unique features in any app that support typing and pasting.
Learn moreWhy Choose KeyboardKit?
KeyboardKit is the most trusted Swift and SwiftUI framework for developers who want to build, scale, and ship custom keyboards.
Lightning Fast
Minimal latency for instant user feedback.
Secure & Private
On-device processing ensures full user privacy.
Swift & SwiftUI
Native iOS following Apple's design guidelines.
Industries
KeyboardKit powers innovation across a wide range of industries and use cases.
Language Technologies
Go beyond Apple's built-in language support. Serve underrepresented languages with richer tools, better layouts, and locale-aware features.
Artificial Intelligence
Bring AI directly into the typing experience. Expose custom AI models and smart suggestions right where users write.
Voice AI
Let users dictate text and trigger voice commands without leaving the keyboard — seamlessly integrated into any app.
Science & Research
Analyze typing patterns to surface behavioral insights — from cognitive load to early indicators of mental health changes.
Medical
Surface biometric data and health insights at the point of input, giving medical users constant, contextual access to critical information.
Finance
Surface real-time financial data, sell triggers, and portfolio insights at the point of input — keeping traders and advisors informed as they work.
Child Protection
Detect exposure to harmful content or signs of grooming or bullying in real time, helping keep children safer wherever they type.
Entertainment
Build delightful keyboard experiences — GIF keyboards, sticker packs, emoji tools, custom fonts, and more — that users keep coming back to.
Success Stories
See how developers build successful keyboard apps with KeyboardKit.
Frequently Asked Questions
Find answers to common questions about KeyboardKit and its features.
What is a custom keyboard?
A custom keyboard is a third-party keyboard extension that can replace the native iOS keyboard. It lets users type using your app’s unique features in any app that supports text input.
What is KeyboardKit?
KeyboardKit is a comprehensive Swift SDK that helps developers build custom keyboards for iOS and iPadOS. It provides all the tools you need including autocomplete, autocorrect, emoji support, and much more.
Which languages are supported?
KeyboardKit supports 75+ locales out of the box, with locale-specific autocomplete, spell checking, and keyboard layouts. You can also add support for additional languages.
Can I use KeyboardKit for commercial projects?
Yes! KeyboardKit offers different licensing options including commercial licenses. Check our pricing page for more details on which plan suits your needs.
Does KeyboardKit collect any user data?
No. KeyboardKit does not collect, store, or transmit any user data. All processing happens on-device. See the privacy policy for details.
Latest News
Follow the KeyboardKit Blog for news & updates.
