Is Can I Use Check free?

Yes, Can I Use Check is completely free to use with no signup required.

Does Can I Use Check send my data to a server?

No. Can I Use Check runs entirely in your browser using client-side JavaScript. Your data never leaves your device.

What is Can I Use Check used for?

Search CSS, HTML, and web API support indices across Chrome, Safari, and Firefox. Fully client-side.

Can I Use Check — Offline Browser Support Directory | DevTab

Reference list of major CSS and HTML5 browser support indices. Check global compatibility and version metrics client-side.

Flexbox Layout

CSS

Universal support in all modern browsers. Fully production-ready.

99.4%

ChromeSupported (v29+)

SafariSupported (v9+)

FirefoxSupported (v28+)

CSS Grid Layout

CSS

Subgrid support added in later versions, but basic Grid is fully universal.

98.1%

ChromeSupported (v57+)

SafariSupported (v10.1+)

FirefoxSupported (v52+)

CSS Nesting

CSS

Native nesting without SASS/SCSS compiler. Baseline 2023.

91.5%

ChromeSupported (v112+)

SafariSupported (v16.5+)

FirefoxSupported (v117+)

Container Queries (@container)

CSS

Apply styles based on parent container dimensions. Fully baseline 2023.

90.2%

ChromeSupported (v105+)

SafariSupported (v16+)

FirefoxSupported (v110+)

backdrop-filter

CSS

Frosted-glass UI overlay styling. Fully supported offline.

93.8%

ChromeSupported (v76+)

SafariSupported (v9.1+ with prefix)

FirefoxSupported (v103+)

clip-path

CSS

Shapes clipping (polygons, circles, paths). Extremely robust in modern browsers.

97.4%

ChromeSupported (v55+)

SafariSupported (v9.1+)

FirefoxSupported (v54+)

Web Crypto API

API

Offline cryptographic operations. Note that WebCrypto requires HTTPS context.

98.7%

ChromeSupported (v37+)

SafariSupported (v11+)

FirefoxSupported (v34+)

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