What is a Password Generator?
A password generator creates random, unpredictable passwords that are significantly more secure than human-chosen ones. People tend to reuse passwords, choose dictionary words, or follow predictable patterns — all of which make accounts vulnerable to brute-force and dictionary attacks.
Two Generation Modes
Password Mode
Passphrase Mode
How to Use
Generate a Password
Select Mode
Choose Password or Passphrase mode using the tabs at the top.
Generate
A password is automatically generated when you open the tool. Click Generate to create a new one.
Copy
Click Copy to copy the password to your clipboard and use it immediately.
Quick Presets
Use preset buttons to quickly configure common password types:
PIN
4-digit numeric code for quick access
Memorable
12 characters with letters and numbers (no symbols)
Strong
16 characters with all character types
Maximum
32 characters with all character types
Customize Settings
Fine-tune your password with these options:
- Length slider — Adjust from 4 to 128 characters
- Character types — Toggle uppercase (A-Z), lowercase (a-z), numbers (0-9), and symbols
- Advanced options — Exclude ambiguous characters (0OoIl1) or define custom symbols
Passphrase Mode
Switch to Passphrase
Click the Passphrase tab at the top of the tool.
Configure Options
Set the word count (3 to 10 words) and choose a separator (hyphen, dot, underscore, or space).
Enhance Security
Toggle Capitalize to capitalize the first letter of each word, and Include number to append a random number.
Bulk Generation
Expand Section
Open the Bulk Generation section
Set Quantity
Choose 1 to 50 passwords
Export
Copy all or download as TXT
Features
Two Generation Modes
Choose between random character passwords and memorable passphrases, each with dedicated settings.
- Password — Highest entropy per character length
- Passphrase — Easier to type and remember
Quick Presets
One-click presets for common use cases that instantly configure length and character options.
- PIN, Memorable, Strong, Maximum
- Instant configuration
Advanced Customization
Full control over password composition with extensive options.
- Length: 4 to 128 characters
- Toggle individual character types
- Exclude ambiguous characters
- Define custom symbols
Strength Meter
Real-time strength indicator based on entropy (measured in bits).
- Four levels: Weak, Fair, Strong, Very Strong
- Helps balance security and usability
Bulk Generation
Generate up to 50 passwords at once using the same settings.
- Copy all to clipboard
- Download as TXT file
Settings Persistence
Your preferences are automatically saved and restored when you return.
- Mode, length, character options
- Preset, separator, toggle states
Frequently Asked Questions
Should I use a password or a passphrase?
Both can be equally secure. Passwords (random characters) are shorter but harder to remember. Passphrases (random words) are longer but much easier to type and recall.
How long should my password be?
The recommended length depends on your chosen mode:
- Random passwords with all character types: 12-16 characters provides strong security
- Passphrases: 4-6 words is recommended
The strength meter will show you the entropy level — aim for at least 60 bits (Strong) for important accounts.
What does "entropy" mean?
Entropy measures password randomness in bits. Higher entropy means more possible combinations an attacker must try.
A password with 80 bits of entropy has 280 possible combinations — far beyond what brute-force attacks can crack in any practical timeframe.
Why exclude ambiguous characters?
Characters like 0 (zero) and O (letter O), or l (lowercase L) and 1 (one), look nearly identical in many fonts.
Excluding them prevents confusion when reading or typing passwords manually, such as from a printed page or screen.
With Ambiguous
0O— Zero or letter O?l1I— L, one, or I?- Hard to read and type
Without Ambiguous
- Distinct characters only
- Easy to distinguish
- Fewer typing errors
Is this tool secure?
Yes. All passwords are generated entirely in your browser using the Web Crypto API (crypto.getRandomValues()), which provides cryptographically secure random numbers.
- 100% client-side generation
- No server requests or data transmission
- Nothing stored or logged
- Cryptographically secure randomness
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