Network Tools
Calculate, test, and parse network configurations
CIDR Calculator
Calculate IP ranges, subnet masks, and available host counts
API Client
Test REST APIs with custom headers, body, and authentication
Cron Parser
Parse cron expressions to human readable schedules
About Network Tools
Network configuration and API testing are essential developer tasks. Our CIDR calculator helps you plan IP subnets and understand network ranges. The API client lets you test endpoints without leaving your browser. The cron parser decodes scheduling expressions into plain English.