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How we handle your dataLaboratorU
Networks/system
Local IPv4, Unix permissions, numeric base, cron, and browser-header helpers for admin workflows.
CIDRCalculate IPv4 network, broadcast, mask, wildcard, address count, and usable range locally.IP RangeConvert IPv4 addresses to decimal/hex and summarize inclusive IPv4 ranges as CIDR blocks locally.chmod calculatorTranslate octal Unix permissions into symbolic notation. No files are modified.umask calculatorCalculate default file and directory permissions from an octal umask.Number base converterConvert an integer between decimal, binary, octal and hexadecimal.IEEE-754 inspectorInspect the Float32 and Float64 bytes of a number.CronExplain common five-field cron expressions locally without scheduling jobs or calling a provider.User-Agent parserRead a pasted User-Agent header without making network requests.Accept-Language parserRead language preferences and weights from a pasted HTTP header.