Build safer account credentials
Generate strong passwords and understand what makes them difficult to guess.
The generator creates random passwords or passphrases, while the checker reviews length, character variety, common terms, repetition, sequences, estimated entropy, and approximate guessing time.
How the password generator works
Random generation without sending data to a server.
The tool uses the browser's cryptographically secure random-number generator when supported. You can choose the length, character groups, readability settings, or a multi-word passphrase.
Generated values remain in the current page only. They disappear when the page is refreshed or closed unless you intentionally copy and save them.
1. Select your settings
Choose the password length, allowed characters, and whether confusing characters should be removed.
2. Generate securely
Create a random character password or a longer passphrase using local browser-based randomness.
3. Review its strength
Check the estimated entropy, guessing resistance, pattern warnings, and practical improvement advice.
4. Store it safely
Copy the result into a trusted password manager and use it for only one account.
Password generator
Prefer random, unique credentials.
A generated password is designed to avoid the predictable choices people often make, including names, dates, keyboard paths, repeated words, and simple substitutions such as replacing an “a” with “@”.
Recommended starting settings
- Use 16 to 24 characters for most accounts.
- Include all character types accepted by the website.
- Generate a different password for every account.
- Save it directly in a password manager.
Password strength checker
Look beyond a simple character checklist.
A password can contain uppercase letters, numbers, and symbols but still be weak when it follows a familiar pattern. The checker reduces the score for common password terms, repeated characters, repeated blocks, keyboard-like sequences, and date-like values.
Important limitation
Strength estimates cannot determine whether a password was reused, phished, shared, exposed in a breach, or stored insecurely.
Use the score as practical guidance, not as a security guarantee.
Password security essentials
A strong password is only one part of account security.
Use unique passwords
Never reuse an important password across websites, apps, email accounts, or financial services.
Enable MFA
Use multi-factor authentication, preferably with an authenticator app, passkey, or hardware security key.
Use a password manager
Store unique credentials securely instead of relying on memory, spreadsheets, notes, or repeated patterns.
Watch for phishing
A strong password cannot protect you if it is entered into a fraudulent website or shared with an attacker.
Frequently asked questions
About password generation and strength
The generator runs in your browser and uses the Web Crypto API when it is available. Generated passwords are not submitted to the server, saved in cookies, placed in the page URL, or stored in local storage.
No. Password generation and strength analysis are performed locally in your browser. The page does not send the password to an API or database.
For most accounts, use at least 16 characters. Longer passwords or passphrases are generally more resistant to guessing, especially when every account uses a unique password.
Strength depends mainly on length, unpredictability, and uniqueness. Randomly generated passwords are usually stronger than passwords based on names, dates, keyboard patterns, or common substitutions.
Not always. Some websites require symbols, while others accept long passwords without them. Length and randomness matter more than simply adding one predictable symbol.
A passphrase is a sequence of multiple words. A sufficiently long, randomly generated passphrase can be easier to type and remember while still providing strong resistance to guessing.
No. Password reuse allows one data breach to compromise several accounts. Use a different password for every important account.
A reputable password manager can generate, store, and autofill unique passwords. It reduces the need to memorize many complex passwords and helps prevent reuse.
It is a rough educational estimate based on the detected character space and password length. Real attack speed depends on password hashing, rate limits, hardware, leaks, patterns, and other factors.
No checker can guarantee security. The result is guidance only. A password may still be unsafe if it has been reused, exposed in a breach, shared, phished, or stored insecurely.
The tool is designed to analyze passwords locally, but it is still safer to test a similar example rather than a highly sensitive password whenever you are uncertain about the device, browser, or network environment.
Save it directly in a trusted password manager, use it for only one account, enable multi-factor authentication, and avoid sending it through email or chat.
Security notice: This tool provides educational estimates and does not guarantee that a password or account is secure. Use unique passwords, multi-factor authentication, and a trusted password manager.