Tools

Everything here runs in your browser. No input is sent to a server, and the pages keep working without a connection once loaded.

• Subnet calculator

  IPv4 and IPv6 prefix arithmetic with the binary view, split and supernet helpers.

• Text counter

  Words, characters, sentences, bytes and reading time. Unicode-aware.

• Secret generator

  Uniformly random strings and EFF-wordlist passphrases, with honest entropy figures.