L1 detects the language you are typing and automatically switches your Mac keyboard layout. No manual switching, no interruption, no missed characters.
L1 removes the friction of switching between languages on your keyboard.
Start typing in any language you want. No need to think about which keyboard is active or switch manually.
Our AI model analyzes your keystrokes in real time, identifying the language you are writing in with high accuracy.
The correct keyboard layout activates seamlessly. No interruption, no manual switching, no missed characters.
From English and Hebrew to Japanese, Arabic, Russian, and dozens more. L1 supports the languages your team actually uses.
Language detection happens as you type, character by character. The switch is so fast you won't even notice it happening.
All language detection runs locally on your Mac. Your keystrokes never leave your device — full privacy by design.
Install from the Mac App Store, enable L1, and start typing. No setup, no training, no preferences to configure.
Privacy is not an afterthought in L1 — it is the foundation. Every bit of language detection happens right on your Mac, using a lightweight ML model that requires no network connection. We do not collect, store, or transmit anything you type.
L1 supports the world's most widely used languages and scripts. We regularly add new languages based on user feedback.
Everything you need to know about L1.
L1 uses a lightweight machine learning model that analyzes character sequences and patterns in real time. It identifies statistical patterns unique to each language, such as character frequency, common bigrams, and script type. The detection happens on-device with minimal latency.
No. All processing happens locally on your Mac. L1 was designed with privacy as a core principle. Your keystrokes never leave your device, and the AI model runs entirely on-device without any network connection required.
L1 supports macOS 13 (Ventura) and later. We recommend keeping your macOS up to date for the best experience and security. The app is optimized for both Intel and Apple Silicon Macs.
Yes. By default, L1 detects all languages you have installed as keyboard layouts on your Mac. You can configure which languages are active in L1 preferences, allowing you to narrow down detection to only the languages you use.
No. L1 is designed to work alongside your existing keyboard shortcuts. It only activates language switching during regular typing and intelligently ignores key combinations used for shortcuts, navigation, and system commands.
L1 is available on the Mac App Store. We offer a free trial so you can experience the seamless multilingual typing before deciding. Check the Mac App Store for current pricing and offers.