Compute IPv4 CIDR subnets, format IP addresses, expand MAC addresses, and generate IPv6 ULAs.
Calculate and generate Unix chmod permission octal values and symbolic representations in real-time.
Inspect browser client metadata: screen resolutions, languages, GPU renderer, touch, and network settings.
Query A, AAAA, CNAME, MX, TXT, and NS records for any host address dynamically from your browser using DNS-over-HTTPS.
Parse raw email headers to trace delivery hops, surface key fields, and check SPF, DKIM, and DMARC authentication results, entirely in your browser.
Convert IPv4 addresses to Decimal, Binary, and Hexadecimal notations client-side in your browser.
List out all individual IP addresses contained inside a CIDR block or hyphenated range client-side in your browser.
Calculate subnet IP range, netmask, wildcard, broadcast address, and host capacities from CIDR notation.
Generate private, RFC 4193 compliant Unique Local Address (ULA) IPv6 ranges client-side in your browser.
Generate random, unicast, multicast, local, or global MAC addresses client-side in your browser.
Lookup MAC address manufacturer and OUI details client-side in your browser.
Sanitize, parse, extract country prefixes, and format telephone numbers.
Generate random, non-privileged, unreserved port numbers (1024-65535) client-side in your browser.
Parse any web URL into its constituent parts including host, path, parameters, protocol, port, and hash parameters client-side.
Parse browser User-Agent strings client-side to detect OS, browser brands, engine, and hardware specifications.
