Domos Digital

Practical guides / Security & identity

Choose passwords and passphrases with useful entropy

A useful secret must come from an unpredictable source and fit the system where you use it. The generator uses browser cryptographic randomness and exposes the selection rules rather than hiding them behind a strength meter.

How to use the workspace

  1. Choose a password or passphrase. Select length or word count and the number to generate.
  2. For passwords, select character classes and whether every selected class is required. For phrases, choose a separator and optional capitalization.
  3. Generate explicitly. Copy only the chosen secret into a password manager or intended destination; nothing is copied automatically.

A concrete starting point

Password: 20 characters, all four classes, count 1
Passphrase: 6 independently selected words, hyphen separator
No sample secret is recommended for real use.

Changing case or separators for a phrase is a formatting choice, not extra random word selection.

Read the result carefully

Entropy is labeled exact or lower-bound according to the generation rules. The selection pool and passphrase wordlist are reported. This estimate describes generation, not protection against phishing, reuse or compromise of a service.

Common mistakes to avoid

  • Do not reuse a secret across accounts.
  • Clipboard managers and synchronized clipboards can retain copied secrets.
  • Avoid generating credentials while screensharing. Resetting the workspace does not clear external clipboards or screenshots.

Limits & privacy

4-256 password characters, 4-24 phrase words and up to 20 outputs per run. Local-only, no automatic history. Generated values stay in memory until cleared or navigated away.

Local: processed in this browser

Inputs stay in browser memory. Saving or downloading is an explicit action; there is no automatic input history.

Read the full privacy boundaries
Open Password & Passphrase Generator →