Free Password Generator - Create Strong & Secure Passwords Instantly

Generate strong, random passwords for all your accounts with our free online password generator. Create unlimited secure passwords with customizable options.

Why Use a Strong Password?

In today's digital world, using strong passwords is your first line of defense against hackers and identity theft. Weak or reused passwords can lead to:

Account Takeovers: Hackers can easily guess simple passwords
Identity Theft: Personal information can be stolen and misused
Financial Loss: Compromised accounts can lead to unauthorized transactions
Data Breaches: Weak passwords make it easier to access sensitive data

Our password generator creates cryptographically secure random passwords that are virtually impossible to crack.

Features of Our Password Generator

Customizable Length: Generate passwords from 4 to 128 characters
Character Options: Include uppercase, lowercase, numbers, and symbols
Exclude Ambiguous Characters: Remove confusing characters like {}[]()/\'"\~`
Exclude Similar Characters: Remove look-alike characters like i, l, 1, L, o, 0, O
Bulk Generation: Create up to 100 passwords at once
Password Strength Indicator: Visual feedback on password security
One-Click Copy: Easily copy passwords to clipboard
100% Client-Side: Your passwords never leave your browser

How Strong is a Password?

Password strength depends on several factors:

| Factor | Impact | |--------|--------| | Length | Longer = exponentially harder to crack | | Character Variety | More types = more combinations | | Randomness | Random > predictable patterns | | Uniqueness | Different for each account |

Password Length Recommendations

8 characters: Minimum acceptable (not recommended)
12 characters: Good for most accounts
16 characters: Strong for sensitive accounts
20+ characters: Excellent for critical accounts

How to Use This Password Generator

Set Password Length: Use the slider to choose between 4-128 characters
Select Character Types: Toggle uppercase, lowercase, numbers, and symbols
Advanced Options: Optionally exclude ambiguous or similar characters
Set Quantity: Choose how many passwords to generate (up to 100)
Generate: Click the "Generate Passwords" button
Copy: Click on any password to copy it to your clipboard

Password Security Tips

Do's ✅

Use a unique password for each account
Use a password manager to store your passwords
Enable two-factor authentication (2FA) where available
Update passwords periodically for sensitive accounts
Use passphrases for passwords you need to remember

Don'ts ❌

Don't use personal information (birthdays, names, etc.)
Don't use common words or phrases
Don't share your passwords with others
Don't store passwords in plain text files
Don't use the same password across multiple sites

How Our Generator Works

Our password generator uses the Web Crypto API's crypto.getRandomValues() function to generate cryptographically secure random numbers. This ensures:

True Randomness: Not pseudo-random like traditional JavaScript
High Entropy: Maximum unpredictability
Browser Security: Uses your browser's built-in security features
No Server Communication: Everything happens locally

Understanding Password Entropy

Password entropy measures the randomness of a password in bits. Higher entropy = stronger password.

Formula: Entropy = Length × log2(Character Pool Size)

| Configuration | Entropy (16 chars) | |--------------|-------------------| | Lowercase only | 75 bits | | Upper + Lower | 91 bits | | Upper + Lower + Numbers | 95 bits | | All characters | 105 bits |

A password with 80+ bits of entropy is considered very secure against brute-force attacks.

Frequently Asked Questions

Is this password generator safe to use?

Yes! Our password generator runs entirely in your browser. No passwords are sent to any server or stored anywhere. The generation uses cryptographically secure random number generation.

How long should my password be?

We recommend at least 12 characters for regular accounts and 16+ characters for sensitive accounts like banking or email.

Should I include special characters?

Yes, including special characters significantly increases password strength by expanding the character pool.

What's the difference between ambiguous and similar characters?

Ambiguous: Characters that can be confusing in certain contexts: {}[]()/\'"\~`
Similar: Characters that look alike and can cause typos: i, l, 1, L, o, 0, O

Can I use this for creating master passwords?

Yes, but we recommend using a longer password (20+ characters) for master passwords since they protect all your other passwords.

How often should I change my passwords?

Change passwords immediately if there's a breach. Otherwise, focus on using unique, strong passwords rather than frequent changes.

TinyTool provides free, secure tools for your daily needs. Bookmark this page for quick access to our password generator!

Password Generator