CapsSwitch

Русский | English

Switch the Windows keyboard layout with Caps Lock, just like Win + Space. CapsSwitch runs in the system tray, does not record what you type, and uses no network. The interface is Russian when the Windows display language is Russian; otherwise English.

Start

Requires Windows 10/11 and at least two keyboard layouts. No additional runtime is needed.

Setup. Download CapsSwitch-…-windows-setup.exe from Releases and run it. By default it installs for the current user without administrator rights; it can also install for all users into Program Files. Setup can start CapsSwitch at sign-in, adds it to the Start menu, and removes it via Settings → Apps.

Portable. Download the x64 or ARM64 ZIP, extract it, and run CapsSwitch.exe. For startup at sign-in, place a shortcut to the EXE in shell:startup (Win + R). Remove that shortcut before moving or deleting the app.

Controls

Action	Result
Caps Lock	Next layout, once per press
Shift + Caps Lock	Normal Caps Lock
Caps Lock with Ctrl, Alt, or Win	Normal key behavior
Right-click the tray icon	Pause, about, exit
Double-click the tray icon	Pause or resume

While paused, Caps Lock works normally. Only one instance runs per Windows session. Before updating or deleting the EXE, choose Exit or run CapsSwitch.exe --stop. Apps running as administrator may require the same permissions for CapsSwitch. The sign-in screen and secure UAC desktop are not supported.

Build

Requires PowerShell and Visual Studio Build Tools 2022 with the C++ workload, Windows SDK, and ARM64 build tools for ARM64 output. The setup needs Inno Setup 6 (winget install JRSoftware.InnoSetup) and is built only with both architectures.

.\build.ps1 build                 # bin/x64 and bin/arm64
.\build.ps1 test                  # x64 checks
.\build.ps1 package               # build, test, ZIPs, setup and SHA-256 in dist/
.\build.ps1 package -Arch x64      # x64 only

GitHub Actions runs the same packaging command. Tests cover keyboard state, tray icons, and hook lifecycle; layout switching also needs a desktop check. Architecture (Russian).

License

MIT.