Is Keycode Inspector free to use?
Yes. Keycode Inspector is part of MyDevTools, the all-in-one developer desktop app, and is free to use.
Media & Design
Free Key Event Tester — MyDevToolsKeycode Inspector on MyDevTools
Shows the JavaScript KeyboardEvent details for any key you press: event.key, event.code, the deprecated keyCode and which values, key location, and modifier state, plus a history of recent key presses and one-click JSON export. Runs entirely on your device.
About Keycode Inspector
Press any key to inspect the JavaScript keyboard event: key, code, keyCode, which, location, and modifiers, with history and JSON export. Part of MyDevTools — an all-in-one desktop toolkit that runs offline and processes your data locally on your machine.
Common Keycode Inspector use cases
Use Keycode Inspector when you need a fast, dedicated way to work with keycode. It is useful during API debugging, code reviews, documentation cleanup, test data preparation, and quick checks. Because MyDevTools keeps related utilities together in one offline desktop app, you can move from Keycode Inspector into nearby tools like formatters, converters, generators, encoders, decoders, and API helpers without leaving the same toolkit.
Example workflow
A typical workflow starts by pasting or typing your input into Keycode Inspector. Review the result, copy the cleaned or generated output, then continue with a related task such as validating a payload, decoding a token, parsing a URL, generating an identifier, or testing an API request. This makes Keycode Inspector part of a practical developer workflow instead of a one-off utility page.
Key Features
- Keycode Inspector supports keycode workflows in one all-in-one desktop toolkit.
- Keycode Inspector supports javascript keycode workflows in one all-in-one desktop toolkit.
- Keycode Inspector supports event.key workflows in one all-in-one desktop toolkit.
- Keycode Inspector supports event.code workflows in one all-in-one desktop toolkit.
- Keycode Inspector supports keyboard event workflows in one all-in-one desktop toolkit.
- Keycode Inspector supports keycode inspector workflows in one all-in-one desktop toolkit.
- Keycode Inspector supports keydown event workflows in one all-in-one desktop toolkit.
- Keycode Inspector supports key event tester workflows in one all-in-one desktop toolkit.
- Runs offline on your desktop
- Free to use, always
Keycode Inspector FAQ
Do I need to install anything for Keycode Inspector?
Keycode Inspector is one of 80+ tools in the MyDevTools desktop app. Install MyDevTools once and every tool works offline, with your data processed locally.
What is Keycode Inspector best for?
Shows the JavaScript KeyboardEvent details for any key you press: event.key, event.code, the deprecated keyCode and which values, key location, and modifier state, plus a history of recent key presses and one-click JSON export. Runs entirely on your device.
What should I use with Keycode Inspector?
Most developers pair Keycode Inspector with related MyDevTools utilities such as formatters, parsers, encoders, generators, API tools, and security helpers.
How to Use Keycode Inspector
- 01
Open the tool
Open Keycode Inspector in the MyDevTools desktop app — no account required to start.
- 02
Enter your data
Paste or type your input directly. Processing happens locally on your device.
- 03
Copy the result
Get your output instantly. Copy it, download it, or keep working in the same tab.
Related Media & Design Tools
Color Picker & ConverterPick colors, convert between HEX, RGB, and HSL, and explore harmonic palettes — shades, complementary, triadic, and more.WCAG Contrast CheckerMeasure WCAG 2.1 contrast between two HEX colors, see AA and AAA pass/fail for normal and large text, and preview typography on the background.Image CompressorCompress JPEG, PNG, and WebP images locally on your device with an adjustable quality slider. No uploads.CSS Gradient BuilderVisual CSS gradient builder with angle control, color stops, and one-click CSS copy.SVG Optimizer / MinifierPaste SVG markup and minify it locally with SVGO: drop comments, editor metadata, default attributes, and whitespace—then compare UTF-8 size before and after.Code ScreenshotCreate Carbon-style code screenshots with syntax highlighting, gradient backgrounds and window controls. Export as PNG, all on your device.CSS GeneratorsVisual generators for CSS box-shadow layers, per-corner border-radius blobs, and fluid clamp() typography. Copy production-ready CSS instantly.EXIF Viewer & RemoverView camera, GPS and EXIF metadata in your photos, then losslessly strip it. JPEG, PNG, WebP, HEIC and TIFF, all processed on your device.