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EVENTS

Keycode & Keyboard Event Inspector

100% In-Browser Execution · Zero External Calls · Private & Secure

Live Keypress Detector● Press Any Key on Keyboard
13JavaScript Event KeyCode / Which
event.keyEnter
event.codeEnter
event.which13
event.location0
ShiftControl (Ctrl)Alt / OptionMeta / CommandRepeat

Event Handler Snippet (Enter)

window.addEventListener('keydown', (event) => {
  if (event.code === 'Enter') {
    event.preventDefault();
    console.log('Enter pressed!');
  }
});

Standard Key Codes Reference Table

Keyevent.codekeyCodeCategoryDescription
aKeyA65AlphabetLetter A
bKeyB66AlphabetLetter B
cKeyC67AlphabetLetter C
zKeyZ90AlphabetLetter Z
0Digit048DigitsDigit 0
1Digit149DigitsDigit 1
9Digit957DigitsDigit 9
EnterEnter13ControlEnter / Return key
EscapeEscape27ControlEscape key
SpaceSpace32WhitespaceSpacebar
TabTab9WhitespaceTab key
BackspaceBackspace8EditingBackspace key
DeleteDelete46EditingDelete key
ArrowUpArrowUp38NavigationUp Arrow
ArrowDownArrowDown40NavigationDown Arrow
ArrowLeftArrowLeft37NavigationLeft Arrow
ArrowRightArrowRight39NavigationRight Arrow
HomeHome36NavigationHome key
EndEnd35NavigationEnd key
PageUpPageUp33NavigationPage Up
PageDownPageDown34NavigationPage Down
ShiftShiftLeft16ModifierLeft Shift
ControlControlLeft17ModifierLeft Control (Ctrl)
AltAltLeft18ModifierLeft Alt / Option
MetaMetaLeft91ModifierLeft Meta / Command / Windows
CapsLockCapsLock20ModifierCaps Lock
F1F1112FunctionFunction Key F1
F2F2113FunctionFunction Key F2
F5F5116FunctionFunction Key F5 (Reload)
F12F12123FunctionFunction Key F12 (DevTools)

Quick Guide

HOW TO USE
KEYCODE & KEYBOARD EVENT INSPECTOR

Simple 4-step workflow

1

Input your data

Paste or type your input directly into the Keycode & Keyboard Event Inspector workspace.

2

Configure parameters & options

Adjust formatting, encoding mode, schema settings, or options in real time.

3

Inspect live result

Review the instant, zero-latency computation generated entirely in browser memory.

4

Copy or export output

Use the one-click copy button to copy the transformed output to your clipboard.

Specification

WHAT IS
KEYCODE & KEYBOARD EVENT INSPECTOR?

100% Client-Side
Zero Latency
Zero Data Logs

The Keycode & Keyboard Event Inspector detects real-time keypresses and outputs all standard W3C KeyboardEvent attributes alongside ready-to-use JavaScript, React, and Vue event listeners.

When to use it

  • →Finding the exact event.code and event.key values for custom keyboard shortcut listeners
  • →Debugging cross-browser keyboard layout inconsistencies (QWERTY, AZERTY, etc.)
  • →Generating React useEffect and onKeyDown event handler hooks
  • →Consulting the complete reference table of modern JS key codes

Key Features

  • ·Live key capture detecting key, code, which, keyCode, and location
  • ·Active modifier state indicators (Shift, Ctrl, Alt, Meta/Command, CapsLock)
  • ·Instant code snippet generator for JavaScript, React hooks, and Vue
  • ·Searchable reference table covering function keys, navigation, and numpad
Technical Notes
01

Modern web applications should prefer event.code and event.key over the deprecated event.keyCode property

02

event.code represents the physical keyboard key position regardless of system layout

Developer TipPress any key combination (like Ctrl + Enter or Shift + Tab) to generate code snippets with modifier guards.

Privacy & Security Guarantee

WHY IN-BROWSER PROCESSING MATTERS FOR DEVELOPERS

Many online formatters and decoders send your code, JSON payloads, auth tokens, and database schemas to backend servers where they can be cached, logged, or intercepted. ToolBox4Devs guarantees that all processing for Keycode & Keyboard Event Inspector runs entirely in your browser's JavaScript V8 engine.

Zero Server Roundtrips
Zero Telemetry Logs
PWA Offline Compatible

Frequently Asked

QUESTIONS &
ANSWERS

Indexed for search engines and AI assistants

What is Keycode & Keyboard Event Inspector?→

The Keycode & Keyboard Event Inspector detects real-time keypresses and outputs all standard W3C KeyboardEvent attributes alongside ready-to-use JavaScript, React, and Vue event listeners.

Is Keycode & Keyboard Event Inspector private and safe for sensitive data?→

Yes. Like all tools on ToolBox4Devs, Keycode & Keyboard Event Inspector runs 100% client-side inside your browser JavaScript runtime. No input data, API keys, JSON payloads, passwords, or secrets are ever sent to any server or external API.

How does Keycode & Keyboard Event Inspector work?→

All computations and transformations execute synchronously within your local browser environment using standard Web APIs, Web Crypto, and JavaScript. You can verify this by checking the DevTools Network tab while using the tool.

Is Keycode & Keyboard Event Inspector free to use?→

Yes, Keycode & Keyboard Event Inspector is 100% free with no registration, no daily usage limits, and no advertising.

Can I use Keycode & Keyboard Event Inspector offline?→

Yes. ToolBox4Devs is an installable Progressive Web App (PWA). Once cached in your browser, all utilities run completely offline without an internet connection.

What are common use cases for Keycode & Keyboard Event Inspector?→

Popular scenarios include: Finding the exact event.code and event.key values for custom keyboard shortcut listeners. Debugging cross-browser keyboard layout inconsistencies (QWERTY, AZERTY, etc.). Generating React useEffect and onKeyDown event handler hooks. Consulting the complete reference table of modern JS key codes.

What features are included in Keycode & Keyboard Event Inspector?→

Key capabilities include: Live key capture detecting key, code, which, keyCode, and location, Active modifier state indicators (Shift, Ctrl, Alt, Meta/Command, CapsLock), Instant code snippet generator for JavaScript, React hooks, and Vue, Searchable reference table covering function keys, navigation, and numpad.

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