Password Generator
Generate strong, random passwords with customizable options
The Password Generator creates one strong, random password at a time with the length and character groups you choose. It calculates an entropy-based strength score, keeps the five most recent unique results in the current page session, and never sends generated passwords off your device.
All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
How to Use
- Set the desired password length
- Toggle the character groups you want to allow
- Click "Generate" to create one password
- Copy, download, or save the result immediately
Features
- Length slider from 4 to 64 characters
- Separate toggles for uppercase, lowercase, numbers, symbols, brackets, and braces
- Entropy-based strength indicator
- Recent-password history for the current page session
- Copy, download, and share actions after generation
Tips for getting Password Generator right
- Generate a different password for every account rather than reusing one strong password
- Aim for 16 characters or more — length matters more than a single exotic symbol
- Store the result in a password manager instead of writing it down
- Use the strength indicator to confirm the password meets the level you need
Worked example: matching a site's password rules
If a site requires 12+ characters with uppercase, lowercase, numbers, and symbols, leave those toggles on, set the length above the minimum, and generate until you get a result you are happy to save in your password manager.
When to change the character options
- Turn symbols off only when an older system rejects them
- Add brackets or braces when a system allows them and you want a larger character set
- Increase length instead of relying on one unusual symbol to make a password stronger
- Keep a password manager open while generating so you can save the result immediately
Real-World Use Cases
- Creating strong passwords for new online accounts
- Generating unique passwords for each service
- Creating secure API keys and tokens
- Generating temporary passwords for shared access
- Building passphrase-based passwords for maximum security
Best Practices
- Generate a unique password for every account you create
- Use at least 16 characters for maximum security
- Include uppercase, lowercase, numbers, and special characters
- Store passwords in a reputable password manager
- Regenerate passwords periodically for critical accounts
Common Mistakes to Avoid
- Using the same password across multiple accounts
- Choosing passwords that are too short (under 12 characters)
- Not including all character types (uppercase, lowercase, numbers, symbols)
- Storing generated passwords in plain text
- Sharing passwords through insecure channels
Troubleshooting
- If the generated password doesn't meet requirements, adjust the settings and generate again
- For sites with specific restrictions, disable only the character groups that are being rejected
- Save the password immediately — the recent list lives only in the current page session
- Generate a few times if you want a password that is easier to read back without reducing length
- Use the strength indicator to verify the password quality before you store it
Frequently Asked Questions
How long should a password be?
Are the passwords truly random?
Can I generate multiple passwords at once?
Privacy & Security
Password generation is performed entirely in your browser using cryptographically secure random values. Generated passwords are never transmitted anywhere, and the recent-password list exists only in the current page session until you refresh or close it.
Tips & Best Practices
- Generate a different password for every account rather than reusing one strong password
- Aim for 16 characters or more — length matters more than a single exotic symbol
- Store the result in a password manager instead of writing it down
- Use the strength indicator to confirm the password meets the level you need
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