Password Generator
Generate secure random passwords with customizable options.
Processed locally in your browserCreate strong, unique passwords with this free online password generator powered by your browser's cryptographic API.
Character Sets
Crack time estimate: Heat death of universe(10B guesses/sec)
All generation uses crypto.getRandomValues(). Nothing leaves your browser. History is stored in sessionStorage only.
Unlock the full toolkit
Batch processing, no ads, higher limits, and API access.
How to Use
Create strong, unique passwords with this free online password generator powered by your browser's cryptographic API.
- Choose a mode. Select Password for random character strings, Passphrase for memorable word-based passwords, or PIN for numeric codes.
- Set the length. Use the slider to pick your desired length — from 8 to 128 characters for passwords, or 3 to 10 words for passphrases. Longer is always stronger.
- Customize character sets. Toggle uppercase letters, lowercase letters, digits, and special characters on or off. Enable "Exclude ambiguous" to remove characters like 0/O and 1/l/I that are easy to confuse.
- Generate and review. Click Generate to create a new password. The strength meter shows entropy in bits and an estimated crack time at 10 billion guesses per second.
- Bulk generate. Set a quantity (up to 50) and generate multiple passwords at once. Copy any password with one click, or copy the entire list.
All passwords are generated using crypto.getRandomValues — the same cryptographic random number generator used by security-critical applications. Nothing is transmitted or stored. Your passwords never leave your browser.
Features
- ✓Password, Passphrase and PIN modes
- ✓Configurable length (8-128)
- ✓Character set options
- ✓Exclude ambiguous characters
- ✓Passphrase mode with 1 000-word list
- ✓Crack time estimate (10B guesses/sec)
- ✓Password strength indicator with entropy
- ✓Bulk generation (up to 50)
- ✓Session history (last 10, masked by default)
- ✓Cryptographically secure (crypto.getRandomValues)
Frequently Asked Questions
- How long should a password be?
- Security experts recommend a minimum of 16 characters for most accounts and 20 or more for high-value accounts like email and banking. This password generator supports lengths up to 128 characters, giving you flexibility to match any security policy.
- What makes a strong password?
- A strong password generated by a secure password generator combines length with variety: uppercase and lowercase letters, digits, and special characters. Avoid dictionary words, repeated patterns, and personal information, as these are the first targets of brute-force and dictionary attacks.
- Is an online password generator safe to use?
- This password generator uses the browser's built-in `crypto.getRandomValues` API, which is cryptographically secure. All generation happens locally in your browser — no passwords are transmitted or stored anywhere, making it safe for creating credentials for sensitive accounts.
- Should I include special characters in my password?
- Yes, including special characters (such as !, @, #, $) significantly increases the entropy of a generated password, making it exponentially harder to crack. Many services require them, and a good password generator lets you toggle which character sets to include.
- How often should I change my passwords?
- Current guidance from NIST recommends changing passwords only when there is a reason to believe they have been compromised, rather than on a fixed schedule. Using a strong, unique password generator for each account — combined with a password manager — is more effective than periodic rotation.