Password Generator: what this tool is for
Weak and reused passwords remain the single leading cause of account takeovers, corporate data breaches, and credential-stuffing attacks. Using predictable patterns (like dictionary words, family names, or simple sequential numbers) leaves accounts vulnerable to automated brute-force cracking tools within seconds.
Xorvian's Strong Password Generator produces cryptographically secure passwords directly in your web browser. Powered by your device's native `crypto.getRandomValues()` Web Crypto API, generated passwords feature true cryptographic randomness rather than pseudo-random math.
Customize password length (from 4 up to 64 characters), toggle character sets (uppercase letters, lowercase letters, numbers, and special symbols), exclude confusing ambiguous characters (such as `l, 1, I, O, 0`), and generate passwords in bulk for multi-account migrations.
The built-in entropy strength meter evaluates password resilience in real-time bits of entropy with estimated brute-force cracking timelines. 100% private and client-side: generated passwords never leave your device and are never sent across the internet.
No file stored
Nothing is saved on our servers, during or after processing.
Local processing
The computation runs in your browser whenever the technology allows it.
Instant result
No waiting and no export queue: the result appears live.
Free, no account
No sign-up, no daily limit and no intrusive ads.
What this tool gives you
Cryptographic Entropy via Web Crypto API
Uses your operating system's native `crypto.getRandomValues()` for true cryptographic randomness and resistance against statistical prediction.
Real-Time Entropy Strength Meter
Evaluates password strength in mathematical bits of entropy and displays realistic brute-force crack time estimates.
Exclude Ambiguous Lookalike Characters
Optional toggle strips confusing characters like `l`, `1`, `I`, `O`, and `0` to prevent transcription errors when typing passwords manually.
Bulk Generation Capabilities
Generate up to 50 unique passwords simultaneously in a structured list for setting up new user accounts or password manager imports.
High-Entropy Random Keys via Native Web Crypto API
Passwords are created strictly within your local browser memory. No credentials or keys are logged, stored, or transmitted.
Customizable Character Sets & Length
Adjust length from 4 to 64 characters and combine uppercase, lowercase, numerical digits, and special punctuation symbols.
Real-world examples
Entropy benchmarks and estimated brute-force resistance across password configurations:
How to use Password Generator
Select Desired Password Length
Use the slider to choose length (14 to 20 characters is recommended for primary accounts).
Configure Character Sets
Toggle uppercase (A–Z), lowercase (a–z), numbers (0–9), and symbols (!@#$%...).
Review Entropy & Strength Meter
Check the real-time entropy score to ensure your configuration provides over 80+ bits of entropy.
Click 'Generate' & Copy
Generate a new password instantly and click the copy icon to store it in your password manager.
Tips and mistakes to avoid
Aim for at Least 14 to 16 Characters
Length is the single most important factor in cryptographic password resilience. A 16-character password with mixed characters is virtually impossible to brute-force.
Always Use a Password Manager
Generate complex, unique passwords for every online service and store them securely in a dedicated password manager (Bitwarden, 1Password, etc.).
Enable Multi-Factor Authentication (2FA)
Combine strong passwords with two-factor authentication (authenticator apps or hardware security keys) for maximum defense.
Avoid : Reusing Passwords Across Multiple Websites
If one service suffers a credential breach, attackers automatically attempt those credentials across email, banking, and social platforms.
Avoid : Using Predictable Leetspeak Substitutions
Substitutions like `P@ssw0rd!` are thoroughly cataloged in automated hacking dictionaries and cracked in fractions of a second.
Avoid : Storing Passwords in Plain Text Notes
Never save passwords in unencrypted desktop text files, emails, or spreadsheets.
Frequently asked questions
Answers to the questions people ask about Password Generator.
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Updated on August 2026. See all tools