About this tool
Generate cryptographically strong, unguessable passwords locally on your device using the browser Web Crypto API. Customize character sets, length, and avoid ambiguous characters with zero server transmission.
Password Generator
Generate cryptographically secure passwords locally with customizable length, symbols, and strength ratings.
Example
- length: 20
- lowercase: yes
- uppercase: yes
- numbers: yes
- symbols: yes
Output
EVERYDAYWaiting
Run the tool to generate output.
When to use this tool
Use Password Generator whenever creating new online accounts, rotating credentials, or provisioning API database secrets that must resist brute-force attacks.
Inputs, Formats & Specifications
- Accepted Inputs
- Length selector (8 to 64 chars), character set toggles (uppercase, lowercase, numbers, symbols, avoid ambiguous)
- Output Formats
- Cryptographically random high-entropy password string, entropy rating in bits, visual strength meter
- Supported Standards
- ASCII printable characters (33–126)
- Browser Limits & Scope
- Passwords are strictly ephemeral. If you refresh the tab without copying, the generated credential cannot be retrieved.
How to use this tool
- Adjust the password length slider to your desired length (12 to 32 characters recommended for high security).
- Select character rules: Uppercase (A-Z), Lowercase (a-z), Numbers (0-9), and Special Symbols (!@#$%^&*).
- Toggle 'Exclude Ambiguous' to remove confusing characters like 'l', '1', 'I', 'O', and '0' for easy manual transcription.
- Click Generate or Refresh to produce a fresh high-entropy credential and copy it to your clipboard.
Examples
Master Password for Password Manager
Generate a 24-character high-entropy master password containing uppercase, numbers, and symbols with over 128 bits of entropy.
Wi-Fi Router & Database Credential
Create an unambiguous 16-character alphanumeric passphrase for headless servers, Wi-Fi networks, or IoT device setups.