LangOver

Convert text typed in the wrong keyboard layout — Hebrew ↔ English.

A tiny, portable Windows app (single .exe, no dependencies) that converts selected text between Hebrew and English keyboard layouts. Also available as MSIX for Microsoft Store and sideloading.

Example: asdf → שדגכ  |  שדגכ → asdf

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Download

Format	x64	x86
Microsoft Store
Standalone EXE (no install)	langover-x64.exe	langover-x86.exe
MSIX (Store / sideload)	langover-x64.msix	langover-x86.msix

All release binaries are signed with Sigstore and include GitHub artifact attestations. SignPath.io code signing is pending approval.

Usage

1. Run langover.exe — it sits quietly in your system tray
2. Select the text that was typed in the wrong layout
3. Middle-click (press the mouse wheel) — the text is converted instantly

That's it. No installation, no setup, no admin rights needed.

How the middle-click works

LangOver is careful not to interfere with normal middle-click behavior:

Scenario	What happens
Text is selected + quick middle-click	✅ Text is converted
No text selected + middle-click	↪ Normal behavior (paste in terminal, auto-scroll, etc.)
Middle-click + drag	↪ Normal behavior (auto-scroll)
Middle-click held > 400ms	↪ Normal behavior (auto-scroll)

Auto-start with Windows (optional)

1. Press Win+R, type shell:startup, press Enter
2. Create a shortcut to langover.exe in the folder that opens

Exit

Right-click the tray icon → Exit

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Building from Source

Requirements

• CMake 3.15+
• MSVC (Visual Studio 2019+) or MinGW-w64

Build

cmake -B build -G "Visual Studio 17 2022" -A x64
cmake --build build --config Release

The output is build/Release/langover.exe — a single, self-contained executable with no runtime dependencies.

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Project Structure

├── src/
│   ├── langover.c              # Main source (Win32 C)
│   ├── langover.rc             # Resources (icon, version info)
│   ├── langover.exe.manifest   # App manifest (DPI, UAC, compat)
│   ├── langover.ico            # Application icon
│   └── resource.h              # Resource IDs
├── msix/
│   ├── AppxManifest.xml        # MSIX package manifest (Desktop Bridge)
│   └── Assets/                 # Store tile logos (various sizes)
├── store/
│   ├── screenshots/            # Store screenshots (1920×1080)
│   ├── en-us/                  # English store listing text
│   ├── he/                     # Hebrew store listing text
│   └── listing.json            # Store submission metadata
├── autohotkey/                 # Alternative lightweight AHK version
│   ├── langover.ahk
│   └── README.md
├── scripts/
│   └── generate-store-assets.ps1  # Regenerate logos & screenshots
├── docs/                       # GitHub Pages site (Hebrew)
├── .github/workflows/build.yml # CI: build EXE+MSIX, sign, release
├── .signpath/                  # SignPath code signing config
├── CMakeLists.txt              # Build system
├── LICENSE                     # MIT License
└── SECURITY.md                 # Security policy

How It Works

1. A low-level mouse hook detects middle-click events
2. On a quick middle-click, the app copies the selected text via Ctrl+C
3. Each character is mapped to its counterpart based on the physical keyboard position
4. The converted text replaces the selection via Ctrl+V
5. The original clipboard content is preserved throughout

The app auto-detects the text direction: if Hebrew characters are found, it converts to English; otherwise, it converts to Hebrew.

License

MIT

Verification

Every release binary can be independently verified:

Sigstore (cosign)

# Install cosign: https://docs.sigstore.dev/cosign/system_config/installation/
cosign verify-blob \
  --signature langover-x64.exe.sig \
  --certificate langover-x64.exe.pem \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com \
  --certificate-identity-regexp "github.com/nachlib/LangOver" \
  langover-x64.exe

GitHub CLI attestation

gh attestation verify langover-x64.exe -o nachlib

SHA256 checksums

Each release includes .sha256 files for manual hash verification.

Contributing

Contributions are welcome! Please open an issue or submit a pull request.