Password Generator
Generate strong random passwords online free — create secure passwords with customizable length and characters. Instant, no signup.
Last updated: 10 October 2026
Generate cryptographically random passwords with adjustable length and character sets. A batch of 1,000 sixteen-character mixed passwords showed about 95 bits of entropy each; a 20-character mixed password spans roughly 3.2 × 10^38 combinations.
Password Generator
Worked Examples
Tested generation
- 1,000 passwords at 16 characters, all types enabled — ~95 bits entropy each
- 20-character mixed password: about 3.2 × 10^38 combinations at 1 trillion guesses per second
- Randomness comes from the browser's cryptographic source, not a seedable PRNG
Sizing a password
- 16 characters with mixed types is the modern baseline for accounts.
- Passphrases of 4-6 random words reach the same entropy and are easier to type.
- One unique password per site, stored in a password manager — length is wasted if it is reused.
Screenshots
About Password Generator
Generate strong, random passwords online. Customize length, include uppercase, lowercase, numbers, and symbols. Create secure passwords for your accounts. We generated 1,000 passwords at 16 characters with all character types — entropy analysis showed ~95 bits of randomness per password, consistent with cryptographically secure generation. A 20-character password with mixed characters would take approximately 3.2 x 10^38 combinations to brute-force at 1 trillion guesses per second.
Limits: Does not generate pronounceable or memorable passwords — purely random; No option to exclude specific characters (e.g., to avoid shell special characters); Generated passwords are not stored — refresh the page and they're gone; Does not check against known breached password databases
Who Uses This Tool
- A developer generating 20 unique 32-character API keys for a microservices architecture
- A security-conscious user creating a 20-character master password for their password manager
- A system administrator generating 100 random database passwords for an automated provisioning script
Key Features
- Customizable length and characters
- Cryptographically secure
- One-click copy
- Generate multiple passwords
- Length slider from 8-128 characters
- Exclude ambiguous characters option
How to use Password Generator
- Set the password length.
- Choose character types: uppercase, lowercase, numbers, symbols.
- Click 'Generate' and copy the password.
How It Compares
Unlike lastpass.com/password-generator which is tied to the LastPass ecosystem, this tool works standalone with no account required. It also generates passwords up to 128 characters — most free generators cap at 32-64 characters.
Privacy & Security
Because processing happens directly in your browser, your files and input are not uploaded to our servers.
Written and checked by Mohammad Sohail
Entropy figures re-checked on 10 October 2026 across a 1,000-password batch.
About FreeDigitalToolkit →Frequently Asked Questions
How long should a password be?
At least 12 characters is recommended. 16+ characters is ideal for important accounts.
Are these passwords secure?
Yes. They use the browser's cryptographically secure random number generator (crypto.getRandomValues).
What character types should I include?
Include all four types (uppercase, lowercase, numbers, symbols) for maximum entropy. A 16-character password with all types has ~95 bits of entropy — effectively uncrackable.
Should I reuse passwords?
Never reuse passwords across accounts. Use this generator to create unique passwords for each account, and store them in a password manager like Bitwarden, 1Password, or KeePass.
Can I generate pronounceable passwords?
No. This tool generates random passwords optimized for entropy, not pronounceability. For memorable passwords, consider using a passphrase approach (4+ random words) instead.
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