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Tools / Security

Random Passphrase Generator

Generate memorable randomized passphrases locally with adjustable word count, capitalization, separators and an optional digit.

Uses your browser's cryptographic random generator. Results are never transmitted or saved by this tool. Avoid saving generated secrets on shared devices.

Words are selected independently from a 128-word list (7 bits per word). For sensitive accounts, prefer 10 or more words. This is not the EFF Diceware word list.

Estimated selection entropy: 70 bits. Approximate information content under independent uniform choices, not a security guarantee.

Generated only on demand. Refreshing or leaving the page discards this result.

What is Random Passphrase Generator?

Passphrases combine randomly selected words. This generator samples from 128 distinct English words, contributing approximately 7 bits per word. Use 10 or more words for a higher security margin, and never reuse the same passphrase across services.

How to use this tool

  1. Select 4 to 16 words; for important accounts choose at least 10.
  2. Pick a supported separator and optional presentation settings.
  3. Generate, copy and store the new passphrase securely.

Example

Example style only: amber-river-pine-dawn-forest (not a generated password).

Related developer tools

Secure Password GeneratorSHA-256 Hash Generator