middle.network
Health check

Subnet calculator, IP converter, Base64 and JWT decoder

Small, fast helpers for everyday network maths and decoding. Most run instantly.

6
tools
6
live now
6 tools
No tool matches. Try “dns”, “mail” or “ping”, or see every tool.

Addresses

3
Subnet / CIDR calculator Network, broadcast, range and host count for a CIDR. Instant
IP converters IP to decimal, hex, binary and IPv6 forms. Instant
MAC vendor lookup Which company made a network card? Instant

Text and time

3
Punycode / IDN converter Convert international domains and spot look-alikes. Instant
Base64 / URL / JWT decoders Decode Base64, URL encoding, hex and JWTs. Instant
Timestamp and TTL converter Unix timestamps, dates and TTLs, converted. Instant

Common questions

Subnet and CIDR calculator, IP converters, punycode, MAC vendor lookup, Base64, URL and JWT decoders, zone formatter and time converter.

It is sent to our servers to process and is not stored. Never paste passwords or private keys.

A short way to write a range of addresses: 192.168.1.0/24 means the first 24 bits are fixed, so 256 addresses.