Password Generator - Strong & Secure Passwords Free

What Does the Password Generator Do?

Generate strong, random passwords with customizable length (8-16 characters) and character types. Includes real-time password strength analysis and estimated crack time.

Quick start: Set length to 14+, enable all character types (uppercase, lowercase, digits, special), click Generate. Copy the password and store it in a password manager.

Password Strength by Length

Length	Combinations (all types)	Crack time (brute force)	Rating
8	218 trillion	Hours to days	Weak
10	1.5 quadrillion	Weeks to months	Fair
12	95 quadrillion	Centuries	Strong
14	6 quintillion	Millions of years	Very strong
16	380 quintillion	Billions of years	Excellent

Practical Examples

Example 1: Email account 12 chars, all types
Result: kR7#mP2xL9@q - Strong, meets most email provider requirements

Example 2: Banking password 16 chars, all types
Result: Xt4&nW8#pK2!mR6$ - Excellent for financial accounts

Example 3: WiFi password 14 chars, letters + digits (easier to type)
Result: kR7mP2xL9qTn4w - Strong enough for WPA2, easy to share verbally

Example 4: App with no special chars 12 chars, upper + lower + digits
Result: Km7rT2pX9qLn - Compatible with systems that block special characters

Example 5: Temporary password 8 chars, all types
Result: kR7#mP2x - Minimum viable, change to longer ASAP

FAQ - Frequently Asked Questions

What is a strong password?

At least 12 characters with a mix of uppercase, lowercase, digits and special characters. Avoid dictionary words, personal info (birthdays, names), and common patterns (123456, qwerty).

Should I use a different password for every account?

Yes, absolutely. If one service gets breached, attackers try that password on other services (credential stuffing). Use a password manager to store unique passwords for each account.

Is it safe to generate passwords online?

This generator runs entirely in your browser - the password is never sent to any server. However, always use HTTPS and avoid generating passwords on public WiFi without a VPN.

How often should I change my passwords?

Modern guidance (NIST) says: change only when compromised, not on a schedule. A strong, unique password that has not been in a breach does not need changing. Enable two-factor authentication (2FA) instead.

What is a passphrase and is it better?

A passphrase uses 4-6 random words (e.g. "correct horse battery staple"). At 20+ characters it is very secure and easier to remember. Good for master passwords. For everything else, use generated random passwords + a password manager.

Why do some sites reject special characters?

Some older systems have limited character sets or poor input validation. If a site rejects your password, try disabling special characters and compensate with a longer password (14-16 characters with letters + digits).

Related Tools

Random Number Generator

Generate random numbers for lotteries, games and statistical sampling. - Open generator

Color Generator

Generate random color palettes in HEX, RGB and HSL formats. - Open generator

Ready-made calculations

The most searched variants of this calculator. Each link opens it with the value already filled in, ready to calculate.