Password Generator
Create secure, random passwords on your terms. Everything is generated locally in your browser.
Why Is a Strong Password Important?
A password is the first and most important line of defense between your personal data and unauthorized access. Despite this, studies consistently show that the most commonly used passwords in the world are still "123456", "password", and "qwerty" — combinations that automated hacking tools can crack in less than a second.
Attackers use several methods to crack passwords. A brute force attack tries all possible combinations of characters — the shorter and simpler the password, the faster and more effective this method is. A dictionary attack uses databases of known words, phrases, and previously leaked passwords. Credential stuffing automatically tests username and password combinations stolen from one service across hundreds of others. The only reliable defense against these threats is a password that is long enough, random, and unique for every account.
How Does This Generator Work?
The password generator on this page uses the Web Crypto API — a cryptographically secure random number generator built directly into every modern web browser. Unlike the simple Math.random(), a cryptographic generator cannot be predicted or manipulated, meaning the generated passwords are truly random.
The entire process happens exclusively in your browser — no data is sent to any server, stored in a database, or logged in any way. As soon as you close the tab, the password disappears forever. This means you can safely generate passwords for your most sensitive accounts — email, online banking, and business systems.
Two Generation Modes
The tool offers two different approaches to password creation, depending on your needs:
- Classic password — a random string of characters with customizable length, character types, and additional options. Ideal for systems that require a mix of letters, numbers, and symbols.
- Passphrase — a combination of random words separated by a delimiter. Easier to remember and type, while achieving very high entropy with 4 or more words.
What Does Password Strength Mean?
The password strength indicator shown below the generated result evaluates several factors: total length, presence of uppercase and lowercase letters, numbers, and special characters. Here’s what each level means in practice:
🔴 Weak Password
Shorter than 8 characters or uses only one type of character. Vulnerable to brute force and dictionary attacks within seconds to minutes.
🟡 Medium Password
8–11 characters with a mix of lowercase/uppercase letters or numbers. Provides basic protection, but not enough for sensitive accounts.
🟠 Good Password
12–15 characters with multiple character types. Acceptable for most everyday accounts, but longer is recommended for critical services.
🟢 Strong Password
16+ characters with all character types. Practically unbreakable with modern attacks — this is the standard you should aim for wherever possible.
Tips for Managing Passwords
- Never reuse the same password across different websites. If one service is compromised and your password is leaked, attackers will automatically try it on other platforms.
- Use a password manager such as Bitwarden, 1Password, or KeePass. You don’t need to remember hundreds of strong passwords — just one master password.
- Enable two-factor authentication (2FA) on all important accounts. Even if someone gets your password, they cannot log in without the second factor (SMS code or authenticator app).
- Change passwords when necessary — especially if you suspect a service has been compromised. The site haveibeenpwned.com allows you to check if your email has been part of known data breaches.
- Do not store passwords in plain text files or unencrypted spreadsheets. If you use a browser to store passwords, make sure to set a master password.
- Watch out for phishing attacks — even the strongest password is useless if you enter it on a fake website. Always verify the URL before entering credentials.
Passphrase vs. Classic Password — Which Should You Choose?
This is a common question. The answer depends on usage. A classic password like kX9!mQ3#vZ2@ has high entropy in a small number of characters, but is extremely difficult to remember and type — making it ideal for passwords stored in a manager and never entered manually.
A passphrase like coral-winter-engine-57 is longer, but each part has meaning and is easier to visualize and remember. Mathematically speaking, four random words from a dictionary of 2000 words provide around 44 bits of entropy — enough for everyday use. With 5 or 6 words, entropy increases to a level more secure than most complex passwords. A passphrase is ideal for a password manager master password, laptop encryption, or anything you type manually.
Frequently Asked Questions (FAQ)
Does the generator store my passwords?
No. Everything is generated and remains exclusively in your browser. There is no server, no database, and no logs. The history you see on the page disappears as soon as you refresh or close the tab.
How long should a secure password be?
For most accounts, 16 characters with a mix of letters, numbers, and symbols is considered very secure. For highly sensitive accounts (email, banking, password manager), 20+ characters or a passphrase of 5–6 words is recommended.
What are "similar characters" and why exclude them?
Characters like the letter "O" and the number "0", or "l", "I", and "1" look almost identical in many fonts. The "Exclude similar characters" option removes them from the character set, reducing the chance of errors when typing passwords manually.
Can I use a generated password for a password manager?
Yes, but for the manager’s master password we recommend using a passphrase — something you can remember without writing it down. For all other passwords stored in the manager, use long, random classic passwords.
How often should passwords be changed?
Modern guidelines (NIST, 2024) do not recommend regular password changes without reason, as it leads users to choose weaker variants. Change your password if you suspect it has been compromised, if a service reports a breach, or if you have shared it with someone.
Why not use passwords containing personal data?
Birth dates, names, street names, or pet names are easily accessible information — attackers gather them from social media and test them first. A randomly generated password cannot be guessed through social engineering or targeted attacks.