Tools
Calculators, generators, and diagnostic utilities for networking, domains, development, and day-to-day technical work.
Domain Inspector
Review registration details, DNS records, nameservers, TLS certificates, HTTP redirects, and domain-renewal limits.
Inspect a domainIP Subnet Calculator
Calculate network ranges, broadcast addresses, usable hosts, masks, and CIDR details for IPv4 networks.
Calculate a subnetCisco Configuration Generator
Build a starting Cisco IOS configuration from common device, interface, routing, and access settings.
Generate a configurationDeveloper Tools
Format and validate JSON, encode URL or Base64 values, generate UUIDs, and convert Unix timestamps in your browser.
Open developer toolsPassword Generator
Create strong random passwords with configurable length and character options.
Generate a passwordBus Driver HOS Calculator
Track driving, on-duty, and break time against hours-of-service limits for passenger-carrying drivers.
Open the HOS calculatorAbout These Tools
Browser-based tools process their input locally where noted. Diagnostic tools such as Domain Inspector contact external services to retrieve current results.