Skip to main content

Secure Password GeneratorSecurity

Create strong, random passwords with custom complexity and length.
7TB^1]<!d#mI3!}g
Strong
Entropy: 105 bitsCrack time: Centuries

Password length

16

Character types

Capabilities & How-To Guide

Instructions, supported options, and client-side privacy guarantee.

CSPRNG Entropy

Uses the browser’s native crypto.getRandomValues() API for cryptographically secure pseudo-random number generation resistant to brute-force attacks.

100% Client-Side

Zero server uploads. Generated strings never leave your device memory and are erased the moment you close or refresh the tab.

NIST Compliant

Supports both high-entropy random strings and 4-8 word Diceware passphrases recommended by modern NIST SP 800-63B standards.

Password Strength vs. Brute-Force Crack Time

Length & TypeEntropyEstimated Crack Time (100B guesses/sec)Recommendation
8 chars (Numbers only)~27 bitsInstant (<1 ms)Never use for logins
8 chars (Mixed case)~45 bits~10 minutesVulnerable to GPU rigs
12 chars (Upper, Lower, Digits)~71 bits~34 yearsStandard everyday account
16 chars (Full symbols)~105 bits1.2 Trillion YearsBanking, Email, Master Key
5-Word Passphrase~65 bitsCenturiesEasy to remember, highly secure

Security Best Practices (NIST & CISA Guidelines)

Length over Complexity

A 16-character phrase is exponentially harder to crack than an 8-character complex password.

Never Reuse Credentials

If one service is breached, credential stuffing attacks compromise all accounts sharing that password.

Pair with a Password Manager

Store generated 16+ character passwords in Bitwarden, 1Password, or Apple Keychain.

Always Enable 2FA / MFA

Two-factor authentication with an authenticator app (TOTP) prevents unauthorized access even if keys leak.

Need an extra feature or found an edge case?Send Feedback