KeyCode Finder | JavaScript Keyboard Event Code Tester

JavaScript keycode finder: press any key to see event.key, event.code and the deprecated keyCode, plus modifier states and a ready-to-paste snippet. Free, runs in your browser. Designed specifically for developers and professionals, this free online utility runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking and no registration required.

Also known as: javascript keycode finder · keyboard event tester · event key vs event code · javascript keydown codes · press any key keycode · keycode reference table

javascript and typescript tools

utilities

developer utilities

Press a Key

35 reference keys

Click here, then press any key

While this area is focused, every key is captured - including Tab and the arrow keys. Click anywhere outside the area to leave it.

Common key reference

Key	event.code	Legacy keyCode
Enter	Enter	13
Escape	Escape	27
Space	Space	32
Tab	Tab	9
Backspace	Backspace	8
Delete	Delete	46
Arrow Up	ArrowUp	38
Arrow Down	ArrowDown	40
Arrow Left	ArrowLeft	37
Arrow Right	ArrowRight	39
Shift (left)	ShiftLeft	16
Control (left)	ControlLeft	17
Alt (left)	AltLeft	18
Meta / Cmd (left)	MetaLeft	91
Caps Lock	CapsLock	20
Home	Home	36
End	End	35
Page Up	PageUp	33
Page Down	PageDown	34
Insert	Insert	45
F1	F1	112
F2	F2	113
F3	F3	114
F4	F4	115
F5	F5	116
F6	F6	117
F7	F7	118
F8	F8	119
F9	F9	120
F10	F10	121
F11	F11	122
F12	F12	123
Digit 0	Digit0	48
Letter A	KeyA	65
Numpad Enter	NumpadEnter	13

Event Details

No key captured yet

Focus the capture area on the left and press a key, or click Load Example.

About KeyCode Finder

Press any key and instantly see every property of the JavaScript keydown event: event.key (the character produced), event.code (the physical key, independent of keyboard layout), the deprecated keyCode and which values, key location and modifier state. Includes a ready-to-paste listener snippet and a searchable reference table of common keys with their legacy keyCode numbers. Runs entirely in your browser - no keystrokes are sent anywhere.

Key Features

Live capture of key, code, keyCode, which, location, modifiers and repeat for any key press
Clear side-by-side view of modern event.key / event.code versus the deprecated keyCode and which
Auto-generated addEventListener snippet using event.code, ready to paste into your project
History of the last 10 key presses so you can compare keys and modifier combinations
Searchable reference table of 35 common keys mapping names to event.code and legacy keyCode values

Use Cases

Implementing keyboard shortcuts and finding the exact event.code to match against
Migrating old code away from the deprecated keyCode and which properties
Debugging how international and non-QWERTY layouts change event.key while event.code stays fixed
Testing which physical key a laptop Fn combination or media key actually sends to the browser

Related Keywords

javascript keycode finder

keyboard event tester

event key vs event code

javascript keydown codes

press any key keycode

keycode reference table

Privacy & Security

All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.

Liked this tool?

DevToolLab is free to use. If this utilitie saved you some time today, please consider supporting our work.

Buy us a coffee ☕

Frequently asked questions

What is KeyCode Finder used for?

JavaScript keycode finder: press any key to see event.key, event.code and the deprecated keyCode, plus modifier states and a ready-to-paste snippet. Free, runs in your browser.

Is KeyCode Finder free to use?

Yes. KeyCode Finder is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use KeyCode Finder?

No. KeyCode Finder works immediately in your browser with no signup, login, or email address required.

Related Tools

Diff Checker Online | Text Comparison Tool

Compare two texts and find differences with side-by-side and unified views. Highlight changes at word or character level with clean, intuitive interface.

text tools

git and version control tools

Chmod Calculator | Linux File Permission Calculator Online

chmod calculator converts Linux file permissions between octal (755) and symbolic (rwxr-xr-x) formats visually. Free, browser-based, and no login needed.

social media tools

code formatters and minifiers

World Clock Online | Global Time Tracker

Track time across multiple cities and timezones simultaneously. Features real-time updates, DST support, day/night indicators, and time comparison table.

date and time tools

utilities

Love Calculator | Love Compatibility Test by Name

Find your love compatibility percentage! Enter two names and get instant love score, compatibility breakdown across 8 traits, and fun results to share. Perfect for Valentine's Day.

encoding and decoding tools

math calculators

Random List Picker Online | Pick Random Item from List

Pick a random item from any list instantly. Paste names, options, or items and let the tool randomly select one or multiple entries. Perfect for giveaways, decisions, and classroom picks.

html tools

random generators

More Tools You Might Like

Pastebin Online | Share Code & Text Snippets Free

Popular

Share code snippets, logs, and text with a shareable link. Syntax highlighting for 30+ languages, expiration controls, and password protection for Pro users.

text tools

password and key generators

math calculators

utilities

Use Tool

URL Tracker & Link Shortener | Track Clicks

Popular

Create short, trackable URLs with detailed click analytics. Track visitor location, devices, referrers, and more. Password protection & QR codes included.

text tools

password and key generators

url and link tools

networking

Use Tool

Webhook Receiver & Inspector | Test HTTP Webhooks

Popular

Generate a unique URL to easily test, receive and inspect HTTP webhooks in real-time. View request headers, query parameters, JSON payloads, and more.