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Keep your word, add real randomness

Root Word Password Generator

Preserve a complete root word while adding a substantial cryptographically random prefix, suffix, or both.

Build passwords around a root word

Enter a non-secret word, choose where it appears, and generate independent results with fresh random material.

Do not enter an existing password. A familiar root word is predictable, so the strength estimate counts only the independently random characters added by this tool.
Use one non-secret word containing 2–24 letters. Capitalization is preserved.
20
Added independently to every result. The root word is not included in the entropy total.
Random character types
Waiting for a valid root word—

Placement: No passwords generated yet

Enter a non-secret root word, then generate.

Your root word stays localThe word and generated passwords remain in this browser tab and are not sent to our server.

How the root word password generator works

The generator preserves the exact spelling and capitalization of your root word. It then uses the Web Crypto API to create a new random sequence for each result and positions that sequence according to your setting.

What is a root word password?

A root word password contains a word selected by the user plus added characters. The recognizable word can make the result easier to identify or type, but it should be treated as known to an attacker. The security comes from the length and unpredictability of the added random sequence.

Prefix, suffix, or both sides?

Choose the layout required by the account or device. “Both sides” splits the random material around the root without reducing its length. “Vary placement” independently chooses prefix, suffix, or both sides for each generated result. Placement is not counted as password entropy.

How many random characters should I add?

The tool requires at least 12. Twenty random characters with the default character types provides a substantial random component while keeping the root word intact. If the destination accepts longer credentials, increasing the random count is stronger.

Should I reuse the same root word?

Generate a fresh result for every account and store it in a password manager. Reusing one root across many accounts creates a visible relationship if any password is exposed. For unrelated fully random results, use the standard password generator; for memorable independent words, use the passphrase generator.