Password Generator for Strong Random Passwords
This password generator creates strong, random passwords that are far harder to guess than anything you would pick by hand. It runs entirely in your browser, so you can build a secure login in seconds without installing anything or signing up.
Reused words, names, and predictable patterns are exactly what brute-force and dictionary attacks look for. Switch between Password mode for high-entropy random strings and Passphrase mode for random words you can actually remember, and let the built-in strength meter confirm how strong each result is.
How to Use the Password Generator
Pick a mode
Use the tabs to choose Password for a random character string or Passphrase for random words joined by a separator. A result is generated automatically as soon as the tool opens.
Apply a quick preset (optional)
Tap PIN, Memorable, Strong, or Maximum to instantly set a common length and character mix, then tweak from there.
Customize the result
In Password mode, set the Length (4 to 128) and toggle uppercase, lowercase, numbers, and symbols. In Passphrase mode, set the word count (3 to 10), choose a Separator, and toggle Capitalize and Include number.
Generate and copy
Click Generate for a fresh result and Copy to send it to your clipboard. Check the strength meter, and open Bulk Generation when you need several passwords at once.
Features
Password & Passphrase Modes
Generate a random character string for maximum entropy, or a string of random dictionary words that stays strong yet easy to remember.
Quick Presets
One click sets a common setup: PIN (4-digit numeric), Memorable (12 chars, no symbols), Strong (16 chars, all types), or Maximum (32 chars, all types).
Adjustable Length
Set any length from 4 to 128 characters with the slider or input box to match each site's password requirements.
Character Type Control
Toggle uppercase, lowercase, numbers, and symbols independently so the password fits the rules of any account.
Exclude Ambiguous Characters
Optionally drop look-alike characters such as 0/O and l/1, or define your own custom symbol set in the Advanced options.
Flexible Passphrases
Join 3 to 10 random words with a hyphen, dot, underscore, or space, then capitalize each word and append a random number.
Strength Meter
A live indicator rates each password by entropy in bits across four levels — Weak, Fair, Strong, and Very Strong.
Bulk Generation
Create up to 50 passwords at once using your current settings, then Copy All or Download them as a .txt file.
Secure Local Randomness
Every result comes from the browser's Web Crypto API for cryptographically secure randomness, with no server involved.
Saved Preferences
Your mode, length, character options, preset, and separator are remembered and restored the next time you return.
Frequently Asked Questions
How long should a strong password be?
For a random password with all character types, 12 to 16 characters gives strong protection, and longer is better for important accounts. For a passphrase, 4 to 6 words works well. Watch the strength meter and aim for at least 60 bits of entropy, where the rating reaches Strong.
What makes a password strong?
Strength comes from length and unpredictability, not from a single special character. A long, randomly generated string or passphrase with no dictionary words, names, or reused patterns is much harder to crack than a short "complex-looking" one. The strength meter here measures this directly as entropy in bits.
Are the generated passwords truly random and safe?
Yes. Every password and passphrase is produced with your browser's Web Crypto API (crypto.getRandomValues()), which provides cryptographically secure random values. No password is ever sent to a server, logged, or stored — the entire process happens on your device.
Should I use a password or a passphrase?
Both can be equally secure when long enough. A random password packs the most strength into the fewest characters but is hard to memorize, while a passphrase of several random words is longer yet far easier to type and recall. For logins you enter often, a passphrase is usually the friendlier choice.
Should I include special characters?
Symbols add variety and help meet sites that require them, so leaving them on is a good default. If a site rejects certain symbols, use the custom symbols field in Advanced, or rely on extra length instead. A longer password with fewer character types can still be very strong.
Why would I exclude ambiguous characters?
Characters like 0 (zero) and O (letter O), or l (lowercase L) and 1 (one), look almost identical in many fonts. Excluding them prevents mistakes when you read a password from a screen or printout and type it by hand.
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