Network Utilities
High-performance network engineering tools for IPv4/IPv6 calculations, BGP analysis, and VLSM allocation. All calculations run client-side for privacy and speed.
Subnet Calculator
IPv4 subnet calculations with binary visualization. Calculate network addresses, broadcast addresses, host ranges, and see the binary representation.
BGP Looking Glass
Analyze BGP AS_PATH attributes, detect AS path prepending, identify private ASNs, and visualize autonomous system paths.
VLSM Allocator
Efficiently allocate variable-length subnets from a base network. Automatic optimization for maximum address utilization.
PRIVACY FIRST
All calculations run entirely in your browser. No data is sent to any server.
LIGHTNING FAST
Optimized calculation engines with sub-millisecond performance. No waiting for results.
HISTORY SAVED
Your calculations are saved locally for quick reference. Export and import as needed.