NETTOOLS

Luis's lab — building in public

Network Utilities

Luis's personal project — a growing collection of network and security tools.

bash — ~/nettools
~/nettools $ ls -la tools/
drwxr-xr-xsubnet/IPv4 Subnet Calculator
drwxr-xr-xpassword/Password Generator
drwxr-xr-xcisco/Cisco Config Formatter
drwxr-xr-xdiff/Text Diff
drwxr-xr-xipv6/[ coming soon ]
drwxr-xr-xcidr/[ coming soon ]
Live

IPv4 Subnet Calculator

Network ranges, host counts, wildcard masks, and subnet splitting.

IPv4 CIDR Wildcard OSPF
Live

Password Generator

Secure passwords and passphrases with entropy analysis.

Passwords Entropy Batch
Live

Cisco Config Formatter

Indent, highlight, and export NX-OS and IOS-XE configurations.

NX-OS IOS-XE RTF Diff
Live

Text Diff

Side-by-side and inline diff with language detection and export.

Side-by-side Inline Export
Coming soon

IPv6 Calculator

Prefixes, EUI-64 generation and range visualization.

IPv6 EUI-64
Coming soon

CIDR Range Explorer

Expand CIDR blocks or detect overlapping ranges.

CIDR Overlap