12 Character Password Generator

Generate a strong random 12-character password

Create a strong random 12-character password instantly in your browser. Length defaults to 12, which fits email, social, and SaaS accounts that require at least 12 characters. Choose uppercase, lowercase, numbers, symbols, or spaces, then copy with one click. Free, no signup, and fully client-side.

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How to use this tool

Generate and copy

Length is preset to 12. Keep Characters mode selected, choose which character sets to include, then click Copy. Use Regenerate for a new password. Generation stays in your browser with crypto.getRandomValues. Nothing is uploaded.

When 12 characters makes sense

Twelve characters is a common requirement for email, social, and SaaS accounts. With uppercase, lowercase, numbers, and symbols, a random 12-character password is a solid everyday choice when longer lengths are not required.

Spaces, symbols, and passphrases

Enable Symbols for special characters and Spaces if the site allows whitespace (spaces count toward the 12-character total). Exclude ambiguous removes lookalikes like 0, O, l, 1, and I. Switch to Words mode for a memorable passphrase from the EFF large wordlist.

FAQ

Is a 12-character password strong enough?

Twelve characters with mixed uppercase, lowercase, numbers, and symbols is a widely used baseline for everyday accounts when longer lengths are not required.

Can I include spaces or symbols?

Yes. Turn on Symbols and optionally Spaces. Spaces count toward the 12-character total. Exclude ambiguous characters if you want something easier to read aloud.

Is my password uploaded?

No. Generation uses crypto.getRandomValues in your browser and never leaves your device.

Need a different length?

See 8, 12, 16, 24, or 32 characters, or the Password Generator hub for all options.