01 / IPv4
Subnet Calculator
Network, broadcast, usable range, mask, wildcard and host count.
Ready.
02 / Addressing
IP Inspector
Identify private and special-purpose IPv4 ranges at a glance.
Ready.
03 / Planning
CIDR / Host Helper
Find the smallest IPv4 subnet that can accommodate a required host count.
Ready.
04 / DNS
DNS Lookup
Resolve common DNS record types using DNS-over-HTTPS. Requires internet access.
Ready.
05 / Encoding
Base64 + URL Codec
Encode or decode UTF-8 text and URL components locally.
Ready.
06 / Integrity
Hash Generator
Generate SHA-256, SHA-384 or SHA-512 for text or a local file.
Ready.
07 / Reference
Common Port Reference
Quick memory-jogger for common infrastructure services.
08 / Layer 2
MAC Inspector
Normalize a MAC and identify unicast/multicast and universal/local administration bits.
Ready.