Browser Cursor Lock

A lightweight AutoIt utility that keeps the mouse cursor inside browser-based games, helping prevent accidental movement outside the game window or into browser interface elements.

Browser Cursor Lock can be controlled manually with a configurable hotkey or set to automatically lock the cursor when supported games or browsers enter fullscreen.

🚀 Features

• 🎮 Built for browser gaming - keeps the cursor contained so accidental movement outside the game does not interrupt play.
• 🔒 Manual or automatic cursor locking - use a hotkey when you want control, or let Browser Cursor Lock handle fullscreen sessions automatically.
• 🌐 Flexible browser and game detection - includes common browsers and games while allowing custom definitions for others.
• 📐 Fine-tuned cursor boundaries - adjust the lock area to account for browser UI, game layouts, and fullscreen differences.
• ⚙️ Fully configurable - manage detection, hotkeys, notifications, and supported games from the built-in Settings window.
• 🖥️ Designed to stay out of the way - runs from the system tray and only activates where configured.

🌐 Browser Support

Browser Cursor Lock includes default support for:

• Brave
• Google Chrome
• Mozilla Firefox
• Microsoft Edge
• Opera

Additional browsers can be added through the configuration window.

🎮 Game Support

Default game definitions are included for:

• Agar.io
• Diep.io
• Digdig.io
• Paper.io
• Snake.io
• Wormate.io

Additional browser games can be added through the configuration window.

⚙️ Configuration

Open Settings from the Browser Cursor Lock system tray icon.

The configuration window lets you manage:

• Cursor locking behavior
• Automatic fullscreen locking
• Lock and unlock hotkey
• Browser detection
• Game detection
• Cursor boundaries and offsets
• Notification behavior and appearance

📐 Cursor Offsets

Browser Cursor Lock supports separate cursor boundaries for browser and game windows.

Offsets can be configured independently for windowed and fullscreen modes using:

Top, Right, Bottom, Left

This makes it possible to keep the cursor away from browser controls or other areas that should remain outside the usable game space.

⌨️ Hotkey

The default lock and unlock hotkey is:

NUMPAD -

The hotkey can be changed from the Settings window using the built-in hotkey capture.

📄 Configuration File

Settings are stored in:

browser cursor lock.ini

The configuration file is stored in the same directory as Browser Cursor Lock.

🔧 Requirements

• Windows 7, 8, 10, or 11
• AutoIt if running the .au3 source directly

🧑‍💻 Author

Created by Brogan Scott Houston McIntyre (TechTank)