Password Generator Free Online
Create strong, random passwords in one click. Control length up to 64 characters and pick your character types. Everything runs in your browser — no password ever leaves your device.
Character Types
How to Generate a Strong Password
- 1Drag the length slider to set how many characters your password should contain. 16 characters is a good default; use 20+ for sensitive accounts.
- 2Toggle the character types — uppercase (A–Z), lowercase (a–z), numbers (0–9), and symbols (!@#…). Enabling all four gives the largest possible character set and the strongest result.
- 3Check the strength indicator below the password. Aim for Strong or Very Strong for any account worth protecting.
- 4Click Copy to copy the password to your clipboard, then paste it directly into your password manager or account sign-up form.
- 5Not satisfied? Click Generate New Password for a fresh result. Each click is completely independent — no two passwords share a pattern.
What Makes a Password Strong?
Password strength comes down to entropy — the total number of possible combinations an attacker must try. Two factors drive entropy the most: length and character set size. A password drawn from 94 printable ASCII characters (upper + lower + digits + symbols) gives 94 possibilities per position. At 16 characters that's 9416 ≈ 3.7 × 1031 combinations — far beyond any brute-force attack with current hardware.
Predictability kills entropy even in long passwords. A phrase like correct-horse-battery has far fewer real-world combinations than its character count suggests because it follows dictionary patterns. Truly random character selection, like what this tool produces, makes every position maximally unpredictable.
A password is only as strong as its uniqueness. Reusing a password across sites means a breach at one service — even a minor one — can unlock your accounts everywhere. Use a unique, randomly generated password for every account, stored in a password manager.
Password Security Best Practices
Use a Password Manager
Bitwarden, 1Password, and KeePass store unlimited unique passwords securely. You only need to remember one strong master password.
Never Reuse Passwords
If any one site is breached, reused passwords give attackers access to all your other accounts through credential stuffing attacks.
Enable Two-Factor Auth
A strong password plus 2FA (authenticator app or hardware key) means a stolen password alone cannot compromise your account.
Rotate Critical Passwords
Update passwords for email, banking, and your password manager every 12–24 months, or immediately after any suspected breach.
Check for Breaches
Services like Have I Been Pwned let you check if your email or passwords have appeared in known data breaches.
Avoid Personal Information
Names, birthdays, pet names, and addresses are the first things an attacker tries. Random generation removes all predictable patterns.
Recommended Password Length by Account Type
| Account Type | Minimum Length | Recommended |
|---|---|---|
| Low-risk (forums, newsletters) | 12 characters | 14–16 |
| Social media, shopping | 14 characters | 16–20 |
| Email, cloud storage | 16 characters | 20–24 |
| Banking, financial accounts | 20 characters | 24–32 |
| Password manager master password | 20 characters | 28–40 (memorised passphrase) |
Frequently Asked Questions
Are the passwords generated here truly random?
Yes. Each password is built by selecting characters uniformly at random from your chosen character sets using JavaScript's Math.random(). The result is then shuffled so required character types don't cluster at the start. No pattern or seed is reused between clicks.
Can I see what passwords I generate? Are they stored anywhere?
No passwords are stored, logged, or transmitted. The generator runs entirely in your browser tab. Once you close or refresh the page, the password is gone. There is no server, database, or analytics event capturing your output.
How long should my password be?
For most accounts (email, social media, shopping), 16 characters is the practical minimum. For high-value accounts like banking, work systems, or password manager master passwords, use 20–32 characters. A 20-character random password with mixed character sets would take modern hardware billions of years to brute-force.
Do I need symbols in my password?
Symbols increase the character set size, making each position harder to guess. However, length matters more than complexity. A 20-character password with only lowercase letters is stronger than an 8-character password with symbols. Use symbols when the site permits them, but don't shorten a password just to add them.
Where should I store the passwords I generate?
Always use a dedicated password manager — Bitwarden (free, open-source), 1Password, Dashlane, or KeePass are well-regarded options. Never save passwords in plain text files, spreadsheets, or browser autofill without encryption. A password manager also lets you use a unique password for every site, which is critical.
Can I use this tool offline?
Yes. Once the page has loaded, the password generator works without an internet connection. All the logic is in the JavaScript bundle already downloaded to your browser. You can go offline and keep generating passwords.
What is the difference between the strength levels shown?
The strength bar scores five factors: length ≥ 8, length ≥ 14, presence of uppercase letters, presence of digits, and presence of symbols. Very Weak = 1 factor; Weak = 2; Fair = 3; Strong/Very Strong = 4–5. It's a quick guide, not a cryptographic guarantee — a 16-character password with all four character types will always score Very Strong.
Is a 12-character password still secure in 2025?
12 characters with mixed types is technically crackable given enough time and computing power, but is still adequate for low-risk accounts. For anything protecting money, health, or identity data, use at least 16–20 characters. Computing power increases over time, so it's good practice to regenerate and update important passwords every year or two.
Privacy — Your Passwords Never Leave Your Browser
This tool generates passwords entirely client-side in JavaScript running inside your browser tab. No password, preference, character-set selection, or any other data is transmitted to our servers or any third party. You can verify this by opening your browser's network inspector (F12 → Network) and confirming zero requests are made when you click Generate or Copy.
The tool continues working offline once the page has loaded. There is no telemetry, no session storage, and no service worker caching of your generated passwords. Each page load starts completely fresh.