Network tools

Browse network tools that run locally in your browser.

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User Agent ParserInspect user agent strings and identify browser, OS, engine, bot, and device-class clues without sending logs to a server.
Browser Info CheckerCheck your browser, user agent, screen size, language, timezone, cookies, storage, and network hints locally.
IP CIDR CalculatorCalculate IPv4 and IPv6 CIDR network ranges, masks, wildcard masks, usable hosts, contains checks, and subnet splits locally.