Network & IT Tools

Subnet calculators, IP converters, password tools, and more for network administrators and IT professionals.

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Networking

Calculate network address, broadcast, host range, and wildcard mask from any CIDR notation or subnet mask.

Convert between subnet mask, CIDR prefix length, and wildcard mask instantly.

Convert IPv4 addresses between dotted-decimal, binary, hexadecimal, and integer formats.

Calculate IPv6 subnet details — network address, last address, total count, and address type for any prefix length.

Divide an IPv4 network into subnets of different sizes based on required host counts. Outputs CIDR, mask, range, and broadcast.

Calculate file transfer time given a file size and connection speed. Supports binary (KiB, MiB) and decimal (KB, MB) prefixes.

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Compute usable capacity, fault tolerance, and write penalty for RAID 0, 1, 5, 6, 10, and ZFS RAIDZ levels.

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Generate cryptographically secure random passwords with customizable length and character sets.

Analyze password entropy, estimated crack time, and vulnerability patterns.