Network & Web
Parse URLs, calculate subnets, look up HTTP status codes
HTTP Status Codes
Searchable reference of all HTTP status codes with descriptions and RFC links.
URL Parser & Builder
Decompose any URL into its parts (protocol, host, query, hash) or rebuild a URL from components.
CIDR / Subnet Calculator
Calculate IPv4 and IPv6 subnet details: network, broadcast, netmask, usable hosts.
MIME Type Lookup
Look up MIME types by file extension or vice versa. 100+ common types from IANA.
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