Network Tools
Fast, reliable networking utilities for planning, calculation, and troubleshooting
Subnet Calculator
Calculate IPv4 network addresses, broadcast addresses, host ranges, and subnet details from IP/CIDR notation. Includes binary representation and subnet list visualization.
Open CalculatorIPv6 Subnet Calculator
Calculate IPv6 network addresses, prefix information, and address ranges. Full support for IPv6 CIDR notation and address compression.
Open CalculatorSubnet Planner
Plan and visualize subnetting schemes for IPv4 networks. Design hierarchical subnets, calculate required subnet sizes, and generate subnet lists with detailed information.
Open PlannerIPv6 Subnet Planner
Plan and visualize IPv6 subnet allocations with support for massive address spaces. Design hierarchical /64 subnets, assign VLANs, and export plans to CSV or JSON.
Open PlannerCIDR Notation Converter
Convert CIDR notation to IP ranges, detect overlaps between multiple networks, and convert IP ranges back to CIDR notation. Supports standard CIDR, subnet mask, and Cisco wildcard formats. Essential for firewall rules and ACL planning.
Open ConverterBit Calculator
Convert between bits, bytes, and larger units (KB, MB, GB, TB, etc.) with support for both legacy and IEEE notation. Perfect for network bandwidth and storage calculations.
Open CalculatorData Transfer Calculator
Calculate how long it takes to transfer data based on file size and transfer rate. Supports various units and displays results in seconds, minutes, hours, days, and weeks.
Open CalculatorJinja Template Builder
Build and test Jinja2 templates with syntax highlighting. Pre-built templates for network configs, Ansible playbooks, Docker Compose, and system configurations with live preview.
Open BuilderMTU Calculator
Calculate Maximum Transmission Unit (MTU) and Maximum Segment Size (MSS) with protocol overhead analysis. Includes VPN encryption overhead, PPPoE, VLAN tagging, and generates OS-specific Path MTU Discovery commands.
Open Calculator