pqrs-org/Karabiner-Elements

Features

• Input Event Interception - Intercepts raw hardware input events at the driver level for low-latency modification.
• Device-Specific Input Rules - The application restricts input modifications to specific hardware devices, allowing different configurations for internal and external keyboards.
• Keyboard Input Handlers - Enables advanced keyboard and mouse customization, including complex key remapping, macro creation, and conditional input automation.
• Context-Aware State Engines - Maintains internal variables and modifier states to enable context-aware remapping.
• Input Device Emulators - Creates software-based keyboard and mouse devices that inject transformed input events back into the system.
• Modifier Key Listeners - Transforms specific key presses or combinations into different outputs, including support for simultaneous key chords and device-specific rules.
• Keyboard Input Automation - Provides a configuration-driven platform for triggering shell commands, application launches, and system functions through custom keyboard shortcuts.
• Hardware Key Interceptors - Intercepts specialized hardware keys to trigger specific system applications or utilities.
• Conditional Modification Rules - Restricts key remapping rules to specific contexts, such as when a particular application is active.
• Secondary Modifier Keys - Creates virtual modifier flags by assigning variables to specific key presses to trigger custom input behaviors.
• HID Event Processors - Manages virtual input devices to provide granular control over hardware signals, modifier states, and device-specific input behavior.
• Keyboard and Input Utilities - Modern utility for deep keyboard remapping and customization.
• Multi-Press Input Triggers - Executes different commands based on whether a key is tapped once, held down, or pressed in rapid succession.
• Keyboard Input Disablers - Automatically deactivates the integrated laptop keyboard whenever a specific external keyboard is detected.
• Secure Input Session Support - Maintains keyboard functionality within password prompts and secure terminal sessions where standard input interception is typically restricted.
• Application Focus Monitors - Detects the currently active application to apply context-aware keyboard modification rules automatically.
• Modifier Key Simulators - Injects specific modifier keys into input sequences to simulate complex key combinations or trigger system-level shortcuts.
• Input Automation Tools - Enables complex key remapping and input event sequences through a command-line interface.
• Hold Duration Triggers - Executes specific commands or key events when a key is held down longer than a defined threshold.
• Application Update Managers - Automates the checking and installation of software updates to ensure access to new features.
• System Input Permissions - Configures required system-level settings to grant access for monitoring and modifying hardware input events.
• Input Modification Pipelines - Processes hardware input signals through a sequential chain of rules to apply transformations.
• Device Management Tools - Allows users to select specific hardware devices for customization and manage their activation state.
• Event Monitoring Systems - Displays real-time key presses and system events to verify modifications and troubleshoot input behavior.
• Sticky Modifier Modalities - Transforms a standard key into a sticky modifier that remains active until the next key press.
• System State Trackers - Exposes internal operating system settings and timestamps as variables to enable context-aware keyboard behavior.
• Mouse Control Automation - Simulates mouse cursor movement and button clicks through keyboard-based definitions to enable navigation without a physical mouse.
• Mouse Input Handlers - Provides utilities to invert axes, swap directions, or disable specific mouse and scroll wheel inputs based on device or application conditions.
• Security Authorization - Manages the necessary system-level permissions and security authorizations required for deep input integration.
• Input Modification Restrictions - Limits key remapping rules to specific applications, connected devices, or input languages.
• JSON Configuration Schemas - Uses structured JSON files to define complex remapping rules and device-specific behaviors.
• Hardware Signal Inspectors - Disables active modifications temporarily to reveal the original signals sent by hardware devices before any remapping occurs.

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