Catalog

All tools

Fast, private network tools: IP geolocation, DNS checks, WHOIS, DNS propagation, traceroute, security analysis and more. No ads, no signup.

Subnet Calculator

IPv4 + IPv6 CIDR math: range, mask, usable hosts, wildcard.

Password Strength

Password entropy, breach status, strength audit.

Ports Reference

Searchable reference of common TCP/UDP ports and services.

REST API reference for every tool. Free for non-commercial use.

Decode header and payload, explain claims, check expiry and verify HMAC signatures in your browser.

Base64 & URL Encoder

Base64, URL, hex and HTML entity encoding with live two-way conversion and correct Unicode.

MAC Address Lookup

Manufacturer from the IEEE registry, block details and flags for randomised or multicast addresses.