A strong password is long, random, and unique per account. Most people's passwords are none of these things.
The Password Generator at Ultimate Tools generates cryptographically random passwords in your browser — nothing is sent to a server, nothing is stored.
How to Generate a Password
- Open the Password Generator
- Set your desired length (12–64 characters)
- Toggle which character sets to include
- Click Generate (or just adjust the sliders — it auto-generates)
- Click Copy to copy to clipboard
Takes about five seconds.
What You Can Customize
| Option | Default | Notes |
|---|---|---|
| Length | 16 characters | Longer = stronger. 16+ recommended |
| Uppercase (A–Z) | ✅ On | |
| Lowercase (a–z) | ✅ On | |
| Numbers (0–9) | ✅ On | |
| Symbols (!@#$...) | ✅ On | Disable if a site doesn't allow symbols |
Most password manager-compatible sites accept all four character types. For sites with restrictions (banking sites that don't allow symbols are common), disable symbols and increase the length instead.
What Makes a Password Strong?
Three properties matter:
Length: Each additional character multiplies the number of possible passwords. A 16-character password has roughly 95^16 ≈ 4.4 × 10^31 possible combinations with all character types. That's not practical to brute-force.
Randomness: A password that's random in the mathematical sense — not based on words, names, or patterns — gives attackers nothing to exploit. The generator uses crypto.getRandomValues(), the browser's cryptographically secure random number generator (the same API used in cryptography libraries).
Uniqueness: Using the same password across accounts means one breach exposes everything. Each account gets its own generated password, stored in a password manager.
What to Do After Generating
Copy it into a password manager. 1Password, Bitwarden, Dashlane, and KeePass can all store generated passwords tied to specific accounts. You never need to remember or type them again.
Don't email it to yourself. Don't paste it into a note app. Don't save it in a spreadsheet. A password manager is the right place.
Enable 2FA on the account. A strong password plus two-factor authentication means a compromised password alone isn't enough to gain access.
Why "Cryptographically Random" Matters
Many password generators use standard pseudo-random number generators (PRNGs) — the same Math.random() you'd use to shuffle a card game. These are not suitable for security purposes because their output can be predicted if the seed is known.
crypto.getRandomValues() uses the operating system's entropy pool — hardware noise, timing jitter, and other unpredictable sources. The output is not reproducible or predictable.
When you generate a password with this tool, the randomness is genuine.
Privacy
The password is generated entirely in your browser. No request is sent to a server. The generated password exists only in your browser's memory until you copy it.
The tool has no account system, no logging, and no analytics on what passwords are generated.
Related Security Tools
- Hash Generator — compute MD5, SHA-256, or SHA-512 hash of any text
- Base64 Encoder/Decoder — encode or decode Base64 strings
- URL Encoder/Decoder — percent-encode or decode URL strings
The next account you create, the next password you need to reset — open the Password Generator, generate something 16+ characters long with all character types, and save it in your password manager.
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