Password Generator
Generate cryptographically strong random passwords. Customize the length and character types to meet any password requirement. All generation happens in your browser, nothing is sent to any server.
Character Types
How to use
Adjust the length slider and toggle the character types you want (uppercase, lowercase, numbers, symbols). A new password generates automatically when you change any setting. Click the copy button to copy the password to your clipboard, or click the refresh button to generate a new one with the same settings.
Password Strength
Weak: Under 8 characters or single character type
Fair: 8-11 characters with 2+ character types
Strong: 12-15 characters with 3+ character types
Very Strong: 16+ characters with all character types
When this tool helps
Reusing passwords or choosing predictable ones are the leading causes of account breaches. This generator creates truly random passwords using your browser's cryptographic API, ensuring each password is unpredictable and secure. It is ideal for creating strong passwords for new accounts, generating secure API keys and tokens for development, meeting complex password requirements (length, character types) for corporate systems, and quickly generating temporary passwords for shared accounts. Since nothing leaves your browser, it is safe to use even for sensitive credentials.
Examples
Example 1: Banking Password
A user needs a strong password for their bank account. They set the length to 20 characters with all types enabled and generate something like "K9$mP2xL#vR7nQ4jW8&d". This password has over 130 bits of entropy, making it virtually uncrackable by brute force, it would take billions of years with current technology.
Example 2: Work System with Restrictions
A corporate system requires exactly 12-16 characters with at least one uppercase, one lowercase, one number, and one symbol. The user sets length to 14 and enables all character types. The generator produces a compliant password, avoiding the frustration of manually creating one that meets all requirements.
Example 3: Wi-Fi Network Password
Setting up a new home router, the user needs a memorable but strong Wi-Fi password. They generate a 16-character password with letters and numbers only (no symbols for easier typing on devices) like "Rm7Kp3Xt9Lw2Nj5Q". They print it on a card for guests rather than using "password123".
Things to watch
- •Never reuse passwords across accounts, if one site is breached, attackers try the same credentials on other sites (credential stuffing).
- •Use a password manager (Bitwarden, 1Password, KeePass) to store generated passwords, do not write them on sticky notes or in plain text files.
- •Enable two-factor authentication (2FA) wherever possible, even a strong password can be compromised through phishing or data breaches.
- •Some systems have maximum password lengths or disallow certain symbols, if your generated password is rejected, adjust the settings accordingly.
- •A 16-character password with mixed character types is over a billion times harder to crack than an 8-character password, length matters most.
Common questions
- How long should a password be?
- A minimum of 12 characters is recommended for strong passwords, though 16 or more is ideal for high-security accounts. Longer passwords exponentially increase the time needed to crack them through brute force. Avoid short passwords (under 8 characters) as they can be guessed more easily.
- What makes a strong password?
- A strong password combines uppercase letters, lowercase letters, numbers, and special symbols. It should be at least 12 characters long and avoid common patterns, dictionary words, or personal information. Unique passwords for each account prevent widespread damage if one password is compromised.
- Are generated passwords safe?
- Yes, cryptographically generated passwords from this tool are very secure. All generation happens in your browser with no data sent to servers. However, the password is only as safe as your storage method. Use a password manager to store generated passwords securely.
- How often should I change my passwords?
- Current security guidance from NIST no longer recommends routine password changes unless you suspect a breach. Instead, focus on using unique, strong passwords for each account and enabling two-factor authentication. If a service you use suffers a data breach, change that password immediately.
- What is a password manager and should I use one?
- A password manager is software that securely stores and auto-fills your passwords behind one master password. Popular options include Bitwarden, 1Password, and KeePass. Using one allows you to have unique, complex passwords for every account without memorizing them, it is considered one of the most effective personal security measures.