Password Generator
Create Strong Random Passwords
Generate cryptographically secure passwords with customizable length, character types, and exclusion rules. Everything runs locally in your browser — no data ever leaves your device.
What Is a Password Generator?
A password generator creates random strings of characters that are extremely difficult for attackers to guess or brute-force. Unlike human-chosen passwords — which tend to follow predictable patterns — generated passwords draw from a large character set with true cryptographic randomness, maximizing entropy and eliminating bias.
Our Password Generator uses the Web Crypto API's crypto.getRandomValues() to select each character, the same randomness source used by security libraries and encryption tools. You control the length, character types, exclusion rules, and whether every selected type must appear at least once.
The built-in strength meter calculates entropy in real time and shows an estimated brute-force crack time assuming 10 billion guesses per second — a realistic model for a well-resourced offline attack. A colour-coded bar makes it easy to see at a glance whether your password is Weak, Fair, Strong, or Very Strong.
Need more than one? Generate five passwords at once, each with its own copy button. A session-only history keeps your last 10 passwords available until you close the tab. Nothing is ever sent to a server, stored on disk, or logged anywhere — making this tool ideal for generating credentials for sensitive accounts and infrastructure.
Discover Features
Cryptographic randomness, customizable rules, strength analysis, bulk generation, and full privacy — all in your browser
Cryptographically Secure
Passwords are generated using the Web Crypto API's crypto.getRandomValues(), the same cryptographic random number generator used by security libraries. Every character is selected with true randomness — no Math.random() shortcuts.
Fully Customizable Rules
Control every aspect of your password: length from 4 to 128 characters, toggle uppercase, lowercase, numbers, and symbols independently, exclude ambiguous characters, and remove any custom characters you need to avoid.
Password Strength Meter
See real-time entropy calculations, a colour-coded strength bar (Weak / Fair / Strong / Very Strong), and an estimated brute-force crack time based on 10 billion guesses per second — so you always know how secure your password is.
Bulk Generation
Need multiple passwords at once? Generate five passwords in a single click, each with its own copy button. Copy all at once or individually — perfect for provisioning accounts, rotating credentials, or creating secure API keys.
Password History
The last 10 generated passwords are kept in session memory so you can scroll back and copy a previous result. History is stored only in browser state — it is never persisted to disk or sent anywhere, and clears when you close the tab.
100% Private & Secure
Everything runs entirely in your browser using the Web Crypto API. No passwords are transmitted, logged, or stored on any server. Close the tab and all data is gone — ideal for generating credentials for sensitive systems.
How to Use
Four steps: set length, choose characters, generate, and copy
Set Your Length
Use the slider or type a number to choose a password length between 4 and 128 characters. Longer passwords are exponentially harder to crack.
Choose Character Types
Toggle uppercase, lowercase, numbers, and symbols on or off. Enable 'exclude ambiguous' to avoid look-alike characters, and add any custom exclusions.
Generate Passwords
Click 'Generate Password' for a single result or '× 5' to create five passwords at once. Each generation uses cryptographic randomness for maximum security.
Copy & Use
Copy any password with one click. Check the strength meter to verify it meets your requirements. Browse your session history to retrieve previously generated passwords.
Use Cases
Common scenarios where a password generator saves time and strengthens security
Account Passwords
Create unique, strong passwords for every online account — email, banking, social media, and shopping. Using a different password per site prevents credential-stuffing attacks.
API Keys & Tokens
Generate high-entropy strings for API keys, access tokens, webhook secrets, and other machine credentials that require cryptographic strength.
Team Credential Provisioning
Bulk-generate initial passwords for new team members, temporary accounts, or testing environments. Copy all five at once and distribute through your secure channel.
Server & Database Access
Generate long, complex passwords for SSH keys, database root users, admin panels, and other infrastructure credentials where maximum entropy is critical.
Password Policy Compliance
Use the 'must include each type' toggle to ensure passwords meet corporate or regulatory requirements that mandate uppercase, lowercase, digits, and special characters.
Wi-Fi & Device Passwords
Create strong, memorable-length passwords for Wi-Fi networks, routers, smart home devices, and other hardware that requires manual entry but still needs high security.
Free vs Paid — Password Generator
Get started free, upgrade when you need more power.
Unlock the Full Power of Password Generator
Remove daily limits, process larger files up to 500 MB, enable batch processing, and get priority support.
Developer Tools includes:
- 13 developer & utility tools
- Unlimited daily uses
- No file size limits
- All output formats
Also available in the All Tools Bundle
FAQ
Frequently asked questions about the Password Generator
Q1. How does the password generator create random passwords?
Q2. Is my generated password stored or sent anywhere?
Q3. What password length should I use?
Q4. What does the 'exclude ambiguous characters' option do?
Q5. What does 'must include at least one of each selected type' mean?
Q6. How is the password strength calculated?
Q7. Can I generate multiple passwords at once?
Q8. Does this work offline?
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