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Security

Password & Passphrase Generator

Strong random passwords and memorable passphrases generated with your browser’s cryptographic random source – nothing is sent or stored.

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Generate strong passwords, memorable passphrases or PINs using your browser’s cryptographic random generator. Nothing leaves your device. The strength meter shows the real entropy and how long a brute-force attack would take.

Which to choose

  • Random password (20+ characters) – for anything stored in a password manager.
  • Passphrase (5–6 words) – for things you must type: your password manager’s master password, disk encryption, Wi-Fi.
  • PIN – only where the device limits attempts (phones, cards).

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Security

Hash & Checksum Generator

SHA-256, SHA-512 and SHA-1 for text or files – verify an ISO or installer against its published checksum without uploading it anywhere.

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IPv6 Address Converter

Expand or compress any IPv6 address and see it as binary, decimal, hex groups and an ip6.arpa reverse DNS name – or turn a decimal number back into IPv6.

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WHOIS & Domain Expiry Lookup

Who is the registrar, when was the domain registered, when does it expire, which nameservers does it use and is it locked? Full WHOIS record included.

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