Not TestedTesting not done, may not work properly

Browser Information Tools

Browser-native inspectors and interactive testing tools for Browser Information. 100% client-side execution — zero external libraries.

9 Tools Available

Inspect navigator details including online state, platform, cookie state, and vendor.

Inspect the browser navigator.userAgent string.

Query modern User-Agent Client Hints (sec-ch-ua, mobile, platform, architecture).

Inspect screen resolution, color depth, pixel ratio, and available width/height.

Measure viewport inner/outer dimensions, scroll position, and frame geometry.

Inspect system preferred languages array navigator.languages.

Query user's local IANA timezone name and UTC offset.

Inspect device approximate RAM memory capacity in gigabytes.

Query logical CPU core thread count navigator.hardwareConcurrency.