firewall ruleset utility
Port Range Normalizer
Clean firewall and service port lists into sorted unique ports, collapsed contiguous ranges, and copy-ready outputs.
idle
Normalized output
Waiting for a result
No normalized list yet
Submit a port list to create collapsed ranges, expanded ports, and copy-ready outputs.
Related tools and guides
networking
CIDR Calculator
Calculate IPv4 network, broadcast, mask, and usable host range from CIDR notation.
opennetworking
DNS Dig
Look up A, AAAA, MX, NS, TXT, and SOA records for any domain, similar to the dig command.
opennetworking
IP Lookup
Convert IPv4 or IPv6 addresses into location details and ISP / ASN network provider information.
opennetworking
Subnet Mask Converter
Convert between CIDR prefix length, IPv4 subnet mask, wildcard mask, and host counts.
open