Keycode Info

What is Online Keycode Info?

Keycode Info is a free online tool that extracts JavaScript event keycode information from keyboards. This keyboard info tool helps developers and users quickly identify which keys correspond to specific keycodes in JavaScript events.

Keyboard events in JavaScript allow you to record user interactions with the keyboard. The KeyboardEvent interface, like many other JavaScript events, provides all of the essential properties and methods for handling every keystroke a user makes using the keyboard.

How to use Online Keycode Info?

• To receive the JavaScript event keycode information, simply press any key on your keyboard.
• The keyboard info for every JavaScript event keycode will be displayed right away.
• You can test any key including special keys, modifier keys, and function keys to get complete keyboard info.

Why Use a Keyboard Info Tool?

Understanding keyboard info is essential for web developers working with keyboard events. This tool provides instant access to important keyboard data including:

• Key Code: The numeric code representing the key pressed
• Key Value: The actual character or key name
• Event Type: Whether it's a keydown, keyup, or keypress event
• Modifier Keys: Information about Shift, Ctrl, Alt, and Meta keys

Common Keyboard Info Use Cases

Web Development: Developers use keyboard info to implement keyboard shortcuts, hotkeys, and custom key bindings in web applications.

Game Development: Game developers need accurate keyboard info to map controls and handle player inputs effectively.

Accessibility Features: Understanding keyboard info helps create accessible interfaces that work well with keyboard navigation.

Testing and Debugging: Quickly verify that keyboard events are firing correctly and returning expected keyboard info values.

Understanding JavaScript Keyboard Events

When working with keyboard info in JavaScript, there are three main event types:

• keydown: Fires when a key is pressed down
• keyup: Fires when a key is released
• keypress: Fires when a key that produces a character value is pressed (deprecated in modern browsers)

Our keyboard info tool captures all relevant data from these events, making it easy to see exactly what information is available for each key press.

Frequently Asked Questions

Q: What is keyboard info and why do I need it? A: Keyboard info refers to the data generated when you press keys on your keyboard, including keycodes, key values, and event properties. Developers need this information to handle keyboard inputs correctly in their applications.

Q: Is this keyboard info tool free to use? A: Yes, our Keycode Info tool is completely free to use. You can test unlimited keys and access all keyboard info without any restrictions.

Q: Does the keyboard info tool work with all keyboards? A: Yes, the tool works with standard keyboards, laptops, external keyboards, and most specialized keyboards. It captures keyboard info from any device that sends standard keyboard events to the browser.

Q: Can I see keyboard info for special keys? A: Absolutely! The tool displays keyboard info for all keys including function keys (F1-F12), arrow keys, modifier keys (Shift, Ctrl, Alt), Enter, Escape, Tab, and more.

Q: What's the difference between keyCode and key in keyboard info? A: The keyCode is a numeric value representing the key (now deprecated), while the key property returns the actual character or key name. Modern applications should use the key property for more reliable keyboard info.

Q: Can I use keyboard info from this tool in my projects? A: Yes, you can use the keyboard info you discover here to implement keyboard event handlers in your own web applications and projects.

Q: Does the keyboard info tool work on mobile devices? A: The tool is designed primarily for physical keyboards. While some mobile devices with physical keyboard attachments may work, touch screen keyboards typically don't generate the same keyboard info as physical keyboards.

Q: How accurate is the keyboard info displayed? A: The keyboard info is captured directly from browser events in real-time, making it 100% accurate for your specific browser and keyboard configuration.

Related Tools

• Keycode Table: All key codes and their accompanying data are listed in a table