Introduction

LinguaX is a ~10 MB native macOS utility with two independent core modules: Mouse+ makes any third-party mouse feel native — smooth scrolling, button and gesture mapping, per-app behavior — and Input Source automation keeps your keyboard language aligned with the app or website in front of you. No drivers, no account, no telemetry.

LinguaX two-module architecture: Mouse+ enhancement and Input Source automation, independent of each other

Start here

New to LinguaX? Three short pages get you from download to a working setup:

Installation — drag to Applications, done in under a minute.
First run — permissions and your first mapping.
Quick tour — validate everything in five minutes.

Setting up for a specific role? See Setup for developers or Setup for designers.

Configure your mouse

Turn a basic mouse into a precise, configurable tool:

Mouse+ overview — what the module does and why it's native.
Smooth scrolling — tunable Min Step, Speed Gain, and Duration.
Button mapping and gesture mapping — click, double-click, long-press, and directional swipe per button.
Compatible models — per-model guides for MX Master, MX Anywhere, G Pro X Superlight, Lift, MX Ergo, and more.

Automate input switching

For multilingual and multi-app work, the input source follows your context automatically:

Automatic input source switching — how it works and what triggers it.
App & website rules — the two rule types and their priority.
Multilingual workflow — a stable bilingual setup pattern.

Priority is always website domain rule > app rule > global default. Domain rules work in Safari, Chrome, Edge, Brave, and Opera (not Firefox).

Set up push-to-talk

A mouse side button can hold the Fn (Globe) key — a physical push-to-talk switch for voice typing:

Push-to-talk voice typing on Mac — the core setup.
Best push-to-talk apps for Mac — pick a voice tool.
Wispr Flow & superwhisper hotkeys — app-specific configuration.

Why LinguaX

Lightweight — ~10 MB, fully native macOS app; no Electron, no background bloat.
Private — no account, no telemetry; configuration stays on your Mac (synced via your own iCloud).
Driverless — drag to Applications and it works with any USB or Bluetooth mouse.
Honest pricing — $9.9 one-time Lifetime purchase covering 3 devices, with a 30-day free trial. No subscription.