qmk-firmware/docs/features.md

QMK Features

QMK has a staggering number of features for building your keyboard. It can take some time to understand all of them and determine which one will achieve your goal.

• Advanced Keycodes - Change layers, dual-action keys, and more. Go beyond typing simple characters.
• Audio - Connect a speaker to your keyboard for audio feedback, midi support, and music mode.
• Auto Shift - Tap for the normal key, hold slightly longer for its shifted state.
• Backlight - LED lighting support for your keyboard.
• Bluetooth - BlueTooth support for your keyboard.
• Bootmagic - Adjust the behavior of your keyboard using hotkeys.
• Combos - Custom actions for multiple key holds.
• Command - Runtime version of bootmagic (Formerly known as "Magic").
• Debounce API - Customization of debouncing algorithms, and the ability to add more/custom debouncing.
• Dynamic Macros - Record and playback macros from the keyboard itself.
• Encoders - Rotary encoders!
• Grave Escape - Lets you use a single key for Esc and Grave.
• Haptic Feedback - Add haptic feedback drivers to your board.
• HD44780 LCD Display - Support for LCD character displays using the HD44780 standard.
• Key Lock - Lock a key in the "down" state.
• Layouts - Use one keymap with any keyboard that supports your layout.
• Leader Key - Tap the leader key followed by a sequence to trigger custom behavior.
• LED Matrix - LED Matrix single color lights for per key lighting (Single Color, not RGB).
• Macros - Send multiple key presses when pressing only one physical key.
• Mouse keys - Control your mouse pointer from your keyboard.
• OLED Driver - Add OLED screens to your keyboard.
• One Shot Keys - Sticky Keys, lets you hit a key rather than holding it.
• Pointing Device - Framework for connecting your custom pointing device to your keyboard.
• PS2 Mouse - Driver for connecting a PS/2 mouse directly to your keyboard.
• RGB Light - RGB lighting for your keyboard.
• RGB Matrix - RGB Matrix lights for per key lighting.
• Space Cadet - Use your left/right shift keys to type parenthesis and brackets.
• Split Keyboard
• Stenography - Put your keyboard into Plover mode for stenography use.
• Swap Hands - Mirror your keyboard for one handed usage.
• Tap Dance - Make a single key do as many things as you want.
• Terminal - CLI interface to the internals of your keyboard.
• Thermal Printer - Connect a thermal printer to your keyboard to be able to toggle on a printed log of everything you type.
• Unicode - Unicode input support.
• Userspace - Share code between different keymaps and keyboards.
• Velocikey - Allows changes in RGB animation speed based on WPM/Typing speed.