Why check my screen size?

Knowing your exact screen dimensions and device pixel ratio helps when developing responsive designs and debugging media queries.

Can I edit localStorage?

Yes. The LocalStorage Viewer lets you view, edit, add, and delete localStorage entries for the current domain.

Inspect your browser environment: screen size, device info, browser capabilities, localStorage contents, and cookies.

Detect browser name, version, OS, and check support for key web APIs.

Parse and display all accessible cookies for the current page.

Display navigator properties: user agent, platform, language, hardware concurrency, and more.

Browse, add, edit, and delete localStorage entries for the current origin.

View window size, screen resolution, pixel ratio, and active breakpoint in real time.

Why check my screen size?: Knowing your exact screen dimensions and device pixel ratio helps when developing responsive designs and debugging media queries.
Can I edit localStorage?: Yes. The LocalStorage Viewer lets you view, edit, add, and delete localStorage entries for the current domain.