How does Secure Password Generator make its random choices?

It maps Web Crypto bytes into the selected alphabet with rejection sampling, then securely shuffles each completed password.

Does Secure Password Generator upload my inputs or results?

No. Values stay in the current browser tab and are not placed in the URL, analytics, storage, or network requests.

When should I use Secure Password Generator?

Use it for new unique credentials or test accounts, then store the result in a trusted password manager rather than reusing it.

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PRIVATE BROWSER TOOL · PHASE 1

Secure Password Generator

Create independent passwords with explicit length and character-class rules using browser cryptographic randomness. The complete workflow runs locally in this browser, with visible controls and a result you can inspect before copying or downloading.

LOCAL WORKBENCH

Generate a result

No upload · no account · no URL storage

Choose your settings, then select Generate.

How it works

Build the allowed alphabet from the selected character classes and exclusions.
Guarantee each enabled class appears, then fill remaining positions with unbiased Web Crypto draws.
Cryptographically shuffle every password so required characters do not occupy predictable positions.

Worked example

With length 20 and all four classes enabled, a result can look like kL7!w9#Q2m@T6xP4v$Z8.

Limits and interpretation

Password length is limited to 8–128 characters and a batch to 100 passwords.
At least one character class must remain enabled after exclusions.
Generated passwords are not saved; copy them before leaving or refreshing the page.

Privacy

Your inputs and generated results stay in this browser. This tool does not put them in a URL, analytics event, server log, or external request.

Frequently asked questions

How does Secure Password Generator make its random choices?: It maps Web Crypto bytes into the selected alphabet with rejection sampling, then securely shuffles each completed password.
Does Secure Password Generator upload my inputs or results?: No. Values stay in the current browser tab and are not placed in the URL, analytics, storage, or network requests.
When should I use Secure Password Generator?: Use it for new unique credentials or test accounts, then store the result in a trusted password manager rather than reusing it.