Professional IP Planner & Network Planning Tool
Visual IP planner with advanced subnet calculator for IPv4 & IPv6. Design and allocate networks with interactive tree diagrams, routing table scanner, subnet allocation tools, and enterprise exports. Plan smarter networks with our free online IP planning tool.
Need advanced planning? Jump to Planning Mode for visual subnet trees or Route Scanner for routing table analysis.
Everything you need for network planning
From simple CIDR calculations to routing table analysis, complex multi-level subnet visualization, and enterprise exports. All tools work seamlessly with both IPv4 and IPv6.
- 🔢IPv4 & IPv6 Calculator
Instant CIDR calculations with network, broadcast, first/last usable addresses. Support for both IPv4 and IPv6 with prefix length validation and subnet splitting.
- 🌳Interactive Subnet Trees
Visualize complex subnet hierarchies with interactive React Flow diagrams. Mind-map style layouts with expandable nodes, colored edges, and real-time navigation.
- 📊Sunburst Charts & Analytics
Beautiful pie charts and sunburst visualizations showing subnet allocation. Interactive charts with drill-down capabilities and color-coded segments.
- �Enterprise Exports
Export to Excel (.xlsx) and CSV with multi-sheet workbooks. Supernet overview, detailed subnet lists, and hierarchical organization up to 1M+ rows.
- �Massive Subnet Tables
Handle millions of subnets with paginated tables. Expandable rows, nested subnetting, and smart pagination for enterprise-scale network planning.
- ⚡Performance & Scale
Built for speed with BigInt precision arithmetic. Handle /8 to /32 networks efficiently with smart algorithms and optimized calculations.
- 🔍Route Table Scanner
Parse and visualize routing tables from Cisco, Juniper, Huawei, Nokia, Linux, and Windows. Supports both IPv4 and IPv6 routing tables with automatic subnet hierarchy detection, XMind-style flow trees, searchable tables with pagination, and collapsible hierarchical views. Perfect for auditing and documenting network routes.
- 💾Save & Restore Plans
Save your IP planning sessions locally with custom file format. Import/export planning configurations across all IPv4 and IPv6 planning modes without server storage.
See it in action
Professional network planning tools used by network engineers worldwide.
IPv4 & IPv6 Calculator
Instant CIDR calculations with detailed breakdown
Interactive Subnet Trees
Visual network hierarchy with expandable nodes
Sunburst Allocation Charts
Interactive pie charts with drill-down capability
Route Table Scanner
Parse and visualize routing tables from multiple vendors
Enterprise Excel Export
Multi-sheet workbooks with 1M+ subnet capacity
Full IPv6 Support
USID, Bit-Aligned, and standard IPv6 planning
Technical Capabilities
Professional IP Planner & Network Planning Tool
IPCalc is a comprehensive IP planner and network planning tool designed for network engineers, system administrators, and IT professionals. Whether you need a visual subnet planner, routing table analyzer, or advanced IP allocation planning capabilities, IPCalc provides all the tools you need in one free, easy-to-use platform.
🔍 Route Table Scanner & Network Analysis
Our powerful routing table scanner parses and visualizes routing tables from multiple vendors including Cisco IOS, Juniper JUNOS, Huawei, Nokia SROS, Linux, and Windows. Supports both IPv4 and IPv6 routing tables with automatic subnet hierarchy detection. Features include XMind-style flow tree visualization, searchable and paginated tables, collapsible hierarchical views, and protocol-based color coding. Perfect for network auditing, documentation, and troubleshooting.
🌳 Visual IP Planning & Subnet Calculator
Our IP network planner supports both IPv4 and IPv6 with visual tree diagrams, interactive subnet allocation, and instant CIDR calculations. The subnet planning tool helps you design efficient network architectures with color-coded allocation bars and hierarchical visualization, making it perfect for network documentation and planning. Features include VLSM (Variable Length Subnet Masking) support, bit-aligned IPv6 planning, USID planning, and interactive React Flow diagrams with drag-and-drop functionality.
The visual subnet planner goes beyond basic calculations with interactive tree diagrams that show your entire network hierarchy at a glance. Split large networks into smaller subnets using VLSM techniques, and visualize the allocation with color-coded sunburst charts, pie charts, and allocation bars. Save and restore your planning sessions with our custom file format - no server storage required.
📊 Enterprise Features & Export
Perfect for IP network planning, our tool helps you design efficient network architectures with minimal waste. The network calculator handles supernetting, subnet splitting, and IP range calculations with precision using BigInt arithmetic. Export your complete network plan to Excel (.xlsx) or CSV with multi-sheet workbooks supporting over 1 million subnets. Each export includes supernet overview, detailed subnet lists, and hierarchical organization perfect for enterprise documentation.
🚀 Professional Tools, Free Access
Whether you're configuring routers, planning cloud infrastructure, documenting enterprise networks, or analyzing routing tables, IPCalc's free IP calculator and network planning tools provide professional-grade features without the professional price tag. All tools support both IPv4 and IPv6, include search and filtering capabilities, handle massive datasets with pagination and lazy loading, and work entirely in your browser with no installations required.
Start planning smarter networks today with our intuitive, browser-based tools. Try the IP Calculator, explore Planning Mode for visual subnet trees, or use the Route Scanner to analyze your network routes.
Ready to plan your network?
Start with our free calculator and route scanner, or upgrade to Pro for advanced visual planning and unlimited exports.