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Your letters, fresh randomness

Custom Password Generator Using Your Letters

Include a short set of letters in multiple independently randomized passwords—without relying on predictable substitutions.

Create randomized password variations

Enter non-secret letters you want included. The tool adds substantial random material and shuffles the complete result.

Do not enter a password you already use. Use only non-secret letters, initials, or a short label. Predictable changes to an existing password are not secure.
Use 1–12 letters from A to Z. These letters are not counted as random entropy.
20
The minimum adds roughly 75–79 bits with the default character sets.
Random character types
Waiting for valid letters—

Letters included in every result: None yet

Enter non-secret letters, then generate.

Your letters stay localThe input and generated variations remain in this browser tab and are not sent to our server.

How the custom password generator works

Each result contains your selected letters exactly as entered plus a new sequence drawn with the browser’s cryptographic random-number generator. The complete set is then shuffled locally.

Are password variations secure?

Minor variations of an existing password are not secure. Attackers test common capitalization, number, date, and symbol substitutions automatically. This tool uses “variation” to mean a separate, independently randomized result—not a mutation of an old credential.

Why the entropy estimate excludes your letters

Letters chosen by a person may be predictable or publicly connected to them. The strength estimate therefore counts only the random characters. The final shuffle can add uncertainty, but the displayed number does not depend on it.

Use every result only once

Choose one generated value for one account and save it in a trusted password manager. Do not use the remaining lines as related passwords for other accounts. Generate a fresh batch instead.

When to use another generator

If a site accepts an unrestricted random password, the standard password generator is simpler. If you need something easier to remember, use independently selected words from the passphrase generator.